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The Best Convertible Car Seats We Tested and Trusted With Our Own Kids’ Safety

There’s no need to buy two car seats and a booster when you could just buy one that will grow with your child.

A child sits in the Chicco Fit360 ClearTex Rotating Convertible Car Seat

Parents

Amazon Big Spring Sale Deals

Find deals on the Maxi-Cosi Pria All-in-One Convertible Car Seat, $180 in select colors (was $300); the Safety 1st Grow and Go All-in-One Convertible Car Seat, $110 in select colors (was $160); and. the Chicco OneFit ClearTex All-in-One Car Seat, $240 in select colors (was $320), for Amazon’s Big Spring Sale. 

Discover more great deals we’re shopping here.

As a mom and writer, I’ve gotten to try out several convertible car seats over the years, and I’ll never use another type of car seat again. I love that they grow with your child from when they are rear-facing babies to forward-facing big kids, and sometimes even into their booster seat years. I was part of the team testing dozens of these seats, coincidentally during the period when my son went from rear-facing to forward-facing—a milestone I won’t forget! 

We tested these car seats in our lab in Birmingham, Alabama, and in the real world in our own cars with our own kids for at least a month—in some cases for over a year. We timed the installation process, made fit adjustments, changed recline positions, and tried to clean those inevitable stains and messes. We also evaluated how comfortable our kids were in the seats. (We did not do any crash testing; all tested seats met federal safety standards.) Throughout testing, we sought input from pediatricians, child passenger safety technicians (CPST), and dozens of parents. 

What we found will help you choose the best convertible car seat for your child and your car. The best convertible car seats are easy to install, feel secure, grow with your child, and provide a comfortable, safe place to ride. They should also offer good value: if they cost more upfront, they should last several years or offer features that make them worth the money.

Recall Alert

On November 27, 2024, Nuna voluntarily recalled more than 600,000 Rava car seats because of the risk of debris in the harness adjuster button area causing the mechanism to not clamp properly, resulting in a loose harness. Nuna Rava car seat owners should check if their unit is affected (manufactured between July 16, 2016, and October 25, 2023) and contact the company to request a new seat pad, cleaning kit, and care instructions. We continue to recommend the Nuna Rava because it performed well on our tests and the issue was corrected in newer models. If you’re buying a Rava car seat, ensure it was manufactured after October 25, 2023, and that there is a fabric cover over the harness adjuster button.

Convertible Car Seat Positions Explained

Convertible car seats are either two-in-ones that offer rear-facing and forward-facing positions, or three-in-ones that offer rear-facing, forward-facing, and booster seat positions. Note that car seats have different weight and height limits for each position. The available positions include:

  • Rear-facing: This position is the safest; experts agree children should remain rear-facing as long as possible: at least until they max out the car seat’s rear-facing height/weight limits, preferably until they reach 30 pounds. The National Highway Traffic Safety Administration (NHTSA) prefers convertible car seats since they allow children to stay rear-facing longer.
  • Forward-facing: Once your child maxes out of the weight limit for rear-facing, you can switch the seat to forward-facing. Your car seat should remain in this position until your child maxes out the forward-facing height or weight limit.
  • Booster seats: Once your child reaches the height/weight limit of a forward-facing car seat, they can switch to a booster seat. Children should be at least 4 years old before transitioning to a booster. The NHTSA recommends using booster seats until age 12, or until they max out of the weight limit (usually about 100 pounds). High-back boosters have backs and shock-absorbing bolsters around the head and neck; backless boosters are cushioned lifts that position your child correctly for the seat belt. Some boosters can be secured with the LATCH system. Combination booster seats are high-back boosters with a removable harness for added protection.

Why We Like It

The Graco Turn2Me 3-in-1 car seat boasts a unique design, sturdy installation, and helpful features. This convertible car seat grows with your child from birth to booster via three modes: rear-facing, forward-facing, and high-back booster. It also rotates 180 degrees, making it simple to get your child in and out of the car.

Installation and adjustments: Installing this rotating car seat is just as simple as turning it; press a button on either side of the seat and voilà. A special seat belt locking mechanism for rear-facing installation creates an incredibly secure and sturdy feel. In forward-facing mode, you connect the tether strap and thread the seat belt through the back of the car seat. Level indicators on both sides show the correct positioning of the seat. We love the no-rethread five-point harness, which means to adjust the harness height, you simply slide the headrest to one of 10 positions instead of removing the harness and rethreading it through the back.

Special features: One thoughtful feature we appreciate is the strap holders on both sides of the seat, which means you don’t have to dig underneath your child to find them. We also love the spacious cupholders that fit all our various-sized cups. The cup holders are dishwasher safe, and the seat’s padding is machine washable—priceless features for the inevitable messes we’ve cleaned over the past year. 

See It in Action

What Parents Say

“I love love love the rotating feature. It truly makes getting a child into the seat SOO much easier.” –Katrina, mom to a 3-year-old

But Take Note

You can only use the rotation feature in rear-facing mode. Rotating it one-handed can be tricky, especially when the seat is snug against the vehicle. 

The Details:

  • Weight: 30 pounds 
  • Dimensions: 20.75 x 19.13 x 24.4 inches
  • Rear-facing weight and height limits: 4–40 pounds
  • Forward-facing weight and height limits: 22–65 pounds; 49 inches
  • Booster weight and height limits: 40–100 pounds; 43–57 inches

Why We Like It

The Cybex Callisto G 360 is a rotating option that accommodates children from birth to age 10. We especially loved the SensorSafe technology that alerts you via an app if your child unbuckles the chest clip while the car is in motion, if the temperature gets too hot or cold, or if your child is still buckled in after you leave the vehicle. If it senses a child is left in the car and you don’t respond, it notifies your emergency contacts and shares your location.

Installation and adjustments: Our tester referred to this as the “easiest installation ever.” It took about two minutes. The 360-degree rotation means you can get your kid in and out without breaking your back. Multiple recline options and a 12-position adjustable headrest with a no-rethread harness keep the seat at the right angle and height as your kid grows. To switch from rear-facing to forward-facing, you simply push a button and swivel the chair until it clicks into position.

Special features: The anti-rebound base and tether help maximize stability and minimize movement during a crash. Integrated magnetic buckle holders keep the straps out of the way while buckling your child. It features a removable infant insert and sun canopy. Our tester found the car seat incredibly sturdy and sleek. Thanks to the cushy padding, her son doesn't fight it like he does other car seats. 

What Parents Say

“The safety features spoke to me the most. I accidentally clipped the seat belt and my phone startled me with an alert of a voice saying there was a child in the car. I felt very reassured with the app and extra safety settings.” —Hanna, mom of a 2-year-old

But Take Note

This car seat is heavy, so not the best option if you need to move it from car to car. It’s also expensive, though we feel its longevity, durability, and safety features make it worth it.

The Details:

  • Weight: 35 pounds
  • Dimensions: 21.7 x 19.5 x 25.5–35 inches
  • Rear-facing weight and height limits: 4–40 pounds
  • Forward-facing weight and height limits: 26.5–120 pounds
  • Booster weight and height limits: 120 pounds, 57 inches

Why We Like It

This luxe offering from Nuna offers unparalleled quality and durability. Safety is the star here: The Exec features Aeroflex side impact protection pods with energy-absorbing foam, an all-steel frame, and a reinforced belt path. Kids can use the seat from 5 to 120 pounds and can remain rear-facing up to a whopping 50 pounds. But enhanced safety doesn’t mean sacrificing comfort. The car seat has luxurious padding, Merino wool infant inserts, an extendable leg rest, ventilation panels, and breathable (and washable!) fabrics. 

Installation and adjustments: From start to finish, it took our testers about 15 minutes to install this car seat. They used the seatbelt method rather than the LATCH system, as recommended by the brand. It’s designed to create an ultra-secure fit without a struggle. No leveling bubbles here; instead, recline angle guides confirm the correct positioning. Adjusting the car seat is a breeze. It only takes a few seconds to move the back of the car seat up or down to adjust the strap length. 

Special features: The Exec is aircraft-certified and includes dual flip-open cupholders, harness covers, and a crotch cover. All components are flame-resistant and contain no added fire-retardant chemicals. The car seat is GREENGUARD Gold Certified, ensuring it does not contribute to indoor air pollution or chemical exposure. 

What Parents Say

“The first thing that stood out to me is the quality. It feels so luxurious and built to last. It’s our go-to on longer drives to make sure our daughter is comfortable the whole way.” —Maria, mom of a 1-year-old

But Take Note

During testing, the car seat felt very sturdy when first installed, but less sturdy over time. This was fixed by readjusting the seat belt to tighten and lock it again. Be sure the strap covers are next to the child’s neck so the belt doesn’t irritate their skin. Finally, it’s pricey, but will be the only car seat your child needs.

The Details:

  • Weight: 26.6 pounds
  • Dimensions: 22.5 x 18.5 x 26–33 inches
  • Rear-facing weight and height limits: 5–50 pounds with seat belt; 5–35 pounds with lower anchor belt
  • Forward-facing weight and height limits: 25–65 pounds with seat belt; 25–40 pounds with lower anchor belt
  • Booster weight and height limits: At least 4 years old; 40–120 pounds; 38–57 inches

Why We Like It

With a price point of $160, this affordable convertible car seat offers a sturdy build with plenty of great features. It has three modes of use: rear-facing, forward-facing, and belt-positioning booster. If your child has this car seat from birth, they could be using it until its 10-year expiration date. Between the durability and added features, we feel it offers great value. 

Installation and adjustments: Installation is straightforward and fast, taking only 30 seconds to complete without the manual or additional help (though we checked the manual afterward, just in case). Rather than a color-coded level indicator, it features a line to show if the seat is level when rear-facing. It felt solid and stable following installation. The buckles are a breeze to use. Thanks to the no-rethread harness, you can quickly shift the headrest and harness to accommodate growing kids. While the car seat’s three-position recline is more upright than other seats we tested, our kids had no complaints about comfort.

Special features: While not luxurious, the polyester fabric is soft and easy to clean. The removable seat pad is machine washable and dryer safe. Plus, the integrated cup holders for drinks and snacks are removable for thorough cleaning. We also like the seat’s harness holders to prevent kiddos from sitting on the buckles when climbing into their seats.

What Parents Say

“This car seat is a fantastic value. It exceeded my expectations: It’s easy to install, comfortable, safe, and secure. I would recommend it to friends looking for a durable, budget-friendly car seat.” –Cassie, mom to a 21-month-old

See It in Action

But Take Note

This car seat is a little big and may be better suited to a medium to large car when using it in rear-facing mode. If you have a taller kid, we recommend the Safety 1st Grow and Go Extend ‘n Ride instead. It’s similar to this seat but has a footrest to provide additional rear-facing legroom, help kids sit more comfortably, and support dangling legs when forward-facing.

The Details:

  • Weight: 18.7 pounds
  • Dimensions: 19.25 x 31.75 x 28.75 inches
  • Rear-facing weight and height limits: 5–40 pounds; 19–40 inches
  • Forward-facing weight and height limits: 22–65 pounds; 29–52 inches
  • Booster weight and height limits: 40–100 pounds; 43.4–52 inches

Why We Like It

At only $280, the Joie Chili Spin 2-in-1 car seat lets you enjoy the convenience of 360-degree rotation without breaking the bank. During testing, several things stood out to us: the distinct clicking sound and red/green indicator that provide reassuring visual and auditory confirmation that the car seat is fully locked in after rotation; the satisfying click of the harness buckle; the thicker shoulder strap pads that stayed in position better than others and prevented the straps from getting twisted; the easily accessed turning activators on either side of the seat.  

Installation and adjustments: Installation was pretty straightforward, though it took about 20 minutes. The level indicator is a blue bar that needs to be within a certain window. The recline adjustment is simple, with a large button on the base of the unit. While it has four reclining positions, our tester could only accommodate three of them in her old Subaru Legacy, which could not fit the full recline. The headrest offers 10 different positions and is easy to adjust, both with or without a child in the seat. 

Special features: This car seat has handy elastic pockets on each side to store the bottom buckle pieces after unbuckling, which makes getting back in easier since you don’t have to fish them out from behind your child. The seat includes an infant insert and shoulder strap pads that can be removed, a cushioned headrest with extra side impact protection, and an anti-rebound bar built into the base to keep the seat firmly in place and reduce movement. 

What Parents Say

“The Joie seat feels very sturdy, durable, and solid. I like the reassurance of hearing and feeling the click into place. We took a 3-hour car trip and there were no comfort issues; I wouldn’t hesitate to take a longer trip.” –Michelle, mom of a 19-month-old

But Take Note

Our testers noted a few irksome issues, but none were deal-breakers. We don’t recommend this car seat for small cars or deeply angled seats. In our tester’s Subaru, this car seat could only achieve the correct level with a small towel placed underneath (directions for this eventuality were found in the instructions, so apparently it’s common). No towel was necessary in the flatter seats of their Honda Ridgeline truck, though. Finally, the lock and level indicators are only on one side of the seat and the tab to adjust the straps is hard to pull.  

The Details:

  • Weight: 27.1 pounds
  • Dimensions: 20.75 x 18.4 x 26-33.5 in.
  • Rear-facing weight and height limits: 4–40 pounds
  • Forward-facing weight and height limits: 30–65 pounds
  • Booster weight and height limits: n/a

Why We Like It

Convertible car seats can be bulky and hefty, so if you have a smaller car or need to squeeze three seats in a row, the Diono Radian 3RXT is your solution. Thanks to the slim design, you won’t have any trouble finding a place for it in your vehicle or on a plane.

Installation and adjustments: We installed the Diono car seat in a Subaru Outback and a smaller European vehicle, and the seat fit neatly without any issues. The setup of this slim car seat isn’t as intuitive as others, but we figured it out after watching instructional videos. We love that it works as a three-across car seat, meaning you can neatly fit three kiddos in the same row. We were also able to use it on a flight to Europe.

Special features: A unique feature that sets the Diono Radian 3RXT apart from other options on our list is its folding capability. The bottom of the seat folds flat into a travel-friendly size for more compact storage. The fabric is soft, comfortable, and feels well-made. The cushions are machine washable, though we could easily wipe away small debris. The cup holder is removable. This durable car seat includes plenty of safety features, like six layers of side impact protection and an anti-rebound bar for extended rear-facing use.

See It in Action

But Take Note

Installation is tricky, so we recommend watching the company’s tutorial videos (and reading the manual) to ensure you’re doing it properly. The fabric faded a bit after a year of use.

The Details:

  • Weight: 30.6 pounds
  • Dimensions: 28.5 x 17 x 11.5 inches 
  • Rear-facing weight and height limits: 4–50 pounds (35 pounds with LATCH); 57 inches
  • Forward-facing weight and height limits: 22–65 pounds (40 pounds with LATCH); up to 57 inches 
  • Booster weight and height limits: 40–120 pounds; up to 57 inches

Why We Like It

If you’ll be moving a car seat from vehicle to vehicle or transitioning from one mode of riding to another, the Graco 4Ever DLX SnugLock 4-in-1 is just the ticket. It’s a dream to install, thanks to detailed instructions in the manual and on the car seat itself. It’s the only car seat on our list that transitions into four modes of use instead of three: rear-facing, forward-facing, high-back booster, and backless booster. 

Installation and adjustments: One of our testers loved this seat so much, she bought one for each of her two children and two vehicles. “We’ve had four of these car seats now and have transitioned two of them from rear-facing to forward-facing to a backless booster,” she says. Installation is a piece of cake and the buckles are straightforward and secure. We haven’t had any challenges adjusting the six-position recline and 10-position headrest during our year-plus testing period. 

Special features: We appreciate how uncomplicated it is to remove the seat cover for machine washing, and the padding is just right. Two cup holders are a handy feature kids love for snacks, drinks, or small toys. But what we appreciate most of all is the durability of this convertible car seat; it will last for years without sacrificing the trusted Graco quality. 

See It in Action

What Parents Say

“I transferred this seat between cars while testing and it took maybe a minute to move it from my car to my father-in-law's car.” –Ashleigh, mom to a 2-year-old

But Take Note

The biggest trouble we had was turning it into a backless booster. The car seat is slightly bulky, but it’s still a great value for how many ways you can use it over the years. 

The Details:

  • Weight: 23 pounds
  • Dimensions: 20 x 21.5 x 24 inches 
  • Rear-facing weight and height limits: 4–40 pounds
  • Forward-facing weight and height limits: 22–65 pounds; up to 49 inches
  • Booster weight and height limits: High-back 40–100 lbs; 43–57 inches; at least 4 years old; Backless booster 40–120 lb; 43–57 inches

Why We Like It

This car seat takes safety to new heights. It features adjustable side impact protection (SIP) and kinetic pods that help shift forces away from your child in case of a side collision. In the case of a front or rear collision, a contoured steel back plate minimizes flexing and reduces forward movement, while the integrated, stow-able anti-rebound bar reduces the force of impact and rotation. To top it off, it’s all wrapped up in energy-absorbing foam. Our tester said it felt very sturdy and safe.

Installation and adjustments: The instructions include about 20 different ways to install the car seat; it can go in any of the backseat spaces, preferably using the LATCH system. The harness has a retainer to make the clips easier to find, while the indicator level’s bubble and green and red lines make it simple to see when it’s set up properly. You can choose from multiple recline levels to find the one that works best for your child. Our tester reported that buckling and unbuckling her child was a breeze. 

Special features: This car seat is very plush and luxurious, featuring an extensive cushion system designed especially to support and cradle a newborn. The fabric is a smooth, soft jersey that’s made to be easy to clean. It’s also breathable and wicks moisture away from the skin. Cup holders adorn both sides.

But Take Note

Our tester called the instruction booklet “a mess” given the abundance of installation methods, lack of guidance on how to choose one, and lack of a logical ordering system. She spent 20 minutes just figuring out which method to use. The car seat is big; depending on the size of your car, certain reclining levels may require you to move your front seat up.

The Details:

  • Weight: 24.4 pounds 
  • Dimensions: 26.25 x 18.75 x 25.75 inches
  • Rear-facing weight and height limits: 5–45 pounds; height not listed
  • Forward-facing weight and height limits: 22–65 pounds; height not listed
  • Booster weight and height limits: n/a

Why We Like It

An easy-to-clean car seat is just about priceless, which is why we love the Chicco OneFit ClearTex All-in-One Convertible Car Seat. Its sleek, attractive design makes it more aesthetically pleasing than most other car seats, and it hasn’t lost its high-quality look and feel after cleaning it multiple times over the past year of testing. 

Installation and adjustments: Scanning a QR code on the car seat leads to instructions that are a breeze to follow. Threading the seat belt through the car seat felt a bit tedious, but that was the only inconvenience we encountered. Fortunately, adjusting the buckle and converting the seat from rear- to forward-facing are simple tasks. Indicators show whether the recline position is correct. The wide range of headrest adjustments ensures this car seat remains comfortable as your child grows.

Special features: One of the best features of Chicco’s ClearTex line is that the fabrics are free of toxic chemicals and GREENGUARD Gold certified, meaning the materials have been independently verified to meet rigorous emissions standards and don’t contain any indoor air pollutants. The fabric is soft and comfortable, and we appreciate how easy it is to spot clean. It also stays quite clean despite kids eating in them often. We appreciate that the cup holders detach to make cleaning them more convenient. 

See It in Action

But Take Note

Parts of the installation were a bit difficult. While it has a slim design, our tester found it a bit bulky in their compact car, especially when it was behind the driver’s seat. One way to make a little more space: The cup holders can fold in when not in use to maximize room on the sides.

The Details:

  • Weight: 25 pounds
  • Dimensions: 21.5 x 19 x 27 inches
  • Rear-facing weight and height limits: 5–40 pounds; up to 43 inches 
  • Forward-facing weight and height limits: 25–65 pounds; up to 54 inches 
  • Booster weight and height limits: 40–100 pounds; 38–57 inches

Why We Like It

Bells and whistles can be fun, but sometimes the basics are all you need: a dependable go-to. The Britax Poplar is a reliable option that doesn’t compromise durability, safety, or ease of use. One notable feature is that this seat can accommodate rear-facing riders for much longer than most: until they reach 50 pounds and 49 inches tall. 

Installation and adjustments: Once we figured out Britax’s “ClickTight” technology, or self-tensioning system, installation only took about 10 minutes. Bubble indicators on both sides of the seat confirm when it’s all done right. The Britax Poplar features a 14-position headrest (many options on our list stop at 10) and six recline positions for comfort and a level ride. Both of those features are a breeze to maneuver with the press of a button. While the buckle itself is seamless to use, we found loosening the straps with a wriggly toddler fairly cumbersome. 

Special features: Two cup holders are optional, but you must use the cup holder inserts if you forego the holders. The fabric is also worth noting; it feels luxe and soft even after months of use, but we wish there were a little more padding in the back. Still, there are no signs of wear or tear despite regular daily use and one eight-hour road trip. 

See It in Action

What Parents Say

“The buckle is seamless to use. Once I hear the buckle click, I’m comforted in knowing my child is buckled in.” –Hanna, mom to a 2-year-old

But Take Note

We’d change a few things, like adding more padding to the seat. Britax says the Poplar car seat has a space-saving design, but it measured nearly the same width as the Graco Extend2Fit.

The Details:

  • Weight: ‎27.2 pounds
  • Dimensions: 20.5 x 17 x 23.5 inches
  • Rear-facing weight and height limits: 5–50 pounds; up to 49 inches 
  • Forward-facing weight and height limits: 22–65 pounds; up to 49 inches
  • Booster weight and height limits: n/a

Why We Like It

The Nuna Rava is an attractive car seat from a brand synonymous with luxury baby gear. It has several safety features to earn the loyalty of practical parents too. Nuna offers luxurious quality and covers most of its gear with a two-year warranty. It’s also smaller than some options and fits comfortably in compact cars. Its extended rear-facing capabilities can accommodate kids up to 50 pounds, and there’s a calf extender for additional legroom. 

Installation and adjustments: While the Rava offers a lower anchor belt (LATCH) installation option, the brand recommends using a seat belt to secure the unit. Installation is quick and simple, thanks to thorough instructions. Colored belt path indicators help you guide the belt through the seat to minimize errors. Plus, the recline angle guides make finding the right position for your child a piece of cake. You must reinstall the seat to adjust its recline. 

Special features: Children will love the Nuna Rava’s memory foam cushion and 10-position recline to relax comfortably. Double cup holders secure drinks, snacks, and other goodies for the car ride, while buckle holders keep the straps back when getting your child in the seat. The cushions are flame-resistant and Greenguard Gold certified, so they’re certified for low chemical emissions. Our tester says the machine washable cushions still look great—even after a year of use and several washes.

Recall alert: As noted, Nuna Rava car seats manufactured between July 16, 2016, and October 25, 2024, were recalled due to issues with the plastic harness adjuster button. Before you buy a Nuna Rava, make sure it was manufactured after those dates and that it has a fabric cover over the harness adjuster button, as seen in the photo above this product description. (The tested photos and videos below show the older model.)

See It in Action

What Parents Say

“I was impressed with the buckle holders that keep the straps out of the way while you load in your toddler. That was one big issue we had with our infant car seat.” –Julia, mom to a 2.5-year-old

But Take Note

This seat is expensive, and our tester felt the calf extender didn’t add much room for their child for older rear-facing mode.

The Details:

  • Weight: 27.2 pounds
  • Dimensions: 16 x 19 x 25.2 inches
  • Rear-facing weight and height limits: 5–50 pounds with seat belt, 5–35 pounds with lower anchor belt; up to 49 inches
  • Forward-facing weight and height limits: 25–65 pounds with seat belt, 25–40 pounds with lower anchor belt; up to 49 inches
  • Booster weight and height limits: n/a

Why We Like It

The Maxi-Cosi Pria is all about options with its three-position recline, five-position headrest, and other adjustable features. We love how the integrated headrest and harness system means no rethreading for a customized fit. Moreover, all adjustability features work seamlessly—a breath of fresh air for parents tired of fussing (and losing) battles with straps, buckles, and more.

Installation and adjustments: Installation was confusing at first, so we watched YouTube videos for clarification, resulting in a five-minute installation. (Though securing it required extra strength to push hard on the base and pull on the belt at the same time.) The car seat is large, but we could still comfortably fit passengers on each side of the car seat in the back row. The buckles are easy to use, and all pieces click smoothly into each other.

Special features: The Maxi-Cosi Pria features soft fabric with ample padding. According to the brand, all fabrics are machine washable and dryer-safe, and the removable cup holders are dishwasher-safe. We also love the harness holders to keep straps out of the way when placing your baby inside—one more convenience we think all seats should have now. Another point in this seat’s favor: It comes in 13 different colors.

See It in Action

But Take Note

Installation can be a little complicated, especially if you don’t watch a video tutorial, and we felt that the seat wobbled slightly, even with a correct installation. It’s large, so check the seat’s specifications below before purchasing.

The Details:

  • Weight: 22 pounds
  • Dimensions: 34.49 x 20 x 30.47 inches
  • Rear-facing weight and height limits: 4–40 pounds; 19–40 inches 
  • Forward-facing weight and height limits: 22–65 pounds; 29–49 inches 
  • Booster weight and height limits: 40–100 pounds; 43–52 inches

Why We Like It

Durable and budget-friendly, the Graco Extend2Fit car seat is great for families who want a seat that can withstand life with kids. It offers extended rear-facing capabilities up to 50 pounds with up to 5 inches of extra legroom, so kids don’t have to sacrifice comfort or safety as they grow. The Extend2Fit is also one of the most lightweight options on our list. 

Installation and adjustments: You can install the seat via LATCH or seat belt. After setup, you can check the level indicator on the side of the seat to ensure a safe installation. The steel-reinforced frame feels sturdy, durable, and never rattles, even after months of use. While loosening the shoulder straps took some pulling, the buckle works smoothly, and the headrest and harness adjust together with the click of a button. This car seat also offers multiple recline positions, which are simple to adjust.

Special features: We love the machine-washable fabric; it’s held up well after multiple washes and many car rides. Putting the removable seat cover back on was a bit challenging, though, since you must stretch it to hook it properly. Still, removing stains required no effort (our washing machines did the work). Two cup holders store your child’s favorite snacks and drinks within arm’s reach.

But Take Note

This pick doesn’t convert into a booster seat, so you’ll need to purchase one separately once your child reaches the forward-facing limits. You can instead opt for the Graco Extend2Fit 3-in-1, which does turn into a booster.

The Details:

  • Weight: 19 pounds
  • Dimensions: 21.5 x 19.5 x 23.5 inches
  • Rear-facing weight and height limits: 4–50 pounds; child's head must be 1 inch below handle 
  • Forward-facing weight and height limits: 22–65 pounds; up to 49 inches
  • Booster weight and height limits: n/a

Why We Like It

This convertible car seat is large and in charge, with all the bells and whistles you could possibly want. The Babyark Smart Convertible Car Seat looks like it’s from the future and has features parents will love, like app integration, hidden magnetic strap holders, a unique carbon frame, rear-facing up to 50 pounds, and more. 

Installation and adjustments: Given the seat’s rigid LATCH connector, anti-rebound bar, and load leg (metal stability pole), we were impressed that installation only took 15 minutes. We were blown away by the app integration with step-by-step animations and the LED light on the rechargeable base to ensure a proper installation. Despite its high-tech design, the Babyark’s buckles, straps, and app are intuitive and uncomplicated. The car seat also offers an 11-position headrest and adjustable recline, which you can even maneuver with a child in the seat. 

Special features: The Babyark app alerts you when your child is unbuckled, buckled in safely, or left unattended in the seat. Another design feature our tester loved was the rigidness of the buckle strap between the legs: it meant she didn’t have to dig underneath her kid to find it. The luxurious fabric shows no signs of wear or tear. 

What Parents Say

“The Babyark is unlike any other car seat I’ve tried. The app integration, the step-by-step installation support, and the little touches like the hidden magnets to hold the straps up make using it it feel like an elevated experience.” –Emily, mom to a 1-year-old

But Take Note

We recommend this seat for large vehicles only. Babyark has a car compatibility list, and while our tester’s Mazda 3 is on it, the seat is too large to fit in rear-facing mode behind the driver’s seat, and the load leg means it can’t go in the middle seat either. The car seat also lacks cup holders. This is also the highest-priced car seat we tested, but you’re paying for many perks.

The Details:

  • Weight: 18 pounds (base); 27 pounds (seat)
  • Dimensions: 30 x 27.5 x 17 inches
  • Rear-facing weight and height limits: 4–50 pounds
  • Forward-facing weight and height limits: 26.5–65 pounds
  • Booster weight and height limits: n/a

Other Notable Convertible Car Seats

We loved how the sleek, luxurious design of this car seat fits right in with our car’s interior aesthetic. Plus, the narrow base meant passengers could still ride comfortably next to the car seat on both sides. We disliked how difficult it is to clean and how expensive it is.

This car seat is incredibly compact and light (just 8 pounds), making it ideal for travel. It stood out for how easy it was to carry through an airport and fit into various cars and overhead bins. The main drawback is the lack of padding and reclining, making it less suitable for everyday use.

At only $60, this seat is one of the most affordable convertible options out there. Our tester said it makes for a nice backup car seat, but they wouldn’t recommend it for daily use as it felt cheaply made. Plus, it only accommodates kids up to 40 pounds, so you will likely have to buy another seat for the booster years. 

Our tester appreciated this car seat’s solid construction, straightforward installation process, soft fabric with high-quality leather sides, and easy-to-clean removable and washable components. It lost points for being very big and bulky and for a bottom buckle that kept falling back and getting lost.

Testers appreciated the clean, modern look and easy installation. The seat earned high marks for its ease of cleaning, thanks to dishwasher-safe removable cup holders and fabric that spot cleans well. Still, we wish the straps were easier to tighten and would’ve preferred larger cup holders, a longer bottom buckle, and a level indicator.

Our Testing Process

To help families choose the right car seat for their child, we tested more than 40 convertible car seats at home and in our Birmingham, Alabama, lab. Most of these car seats have been with our editors and their kiddos for more than a year. During testing, we assessed: 

  • Ease of Installation: We had testers set timers to see exactly how long it took them to install the seat properly, both via the LATCH system and the seat belt, while noting if help beyond the instruction manual was needed. Testers also noted whether level readers were available and clear. We shook the car seats at the base once installed, ensuring they didn’t move more than one inch in any direction and adjusting them if necessary. If the car seats had a rotating function, we had testers see how easy it was to use, especially one-handed.
  • Durability: We looked for any signs of wear and tear over the car seat, including scratches to the frame, fabric, discoloration, pilling, and more. 
  • Design: We specifically wanted to know how the car seat worked in various vehicle types, large and small alike. Testers noted if seats needed to be moved to accommodate the car seat or if they were unable to fully recline the car seat. We encouraged testers to examine the amount of space they had left in the backseat, including whether additional passengers or car seats could fit next to it comfortably.
  • Ease of Use: Testers noted what it was like to get their child in and out of the car seat and how efficient the harness was. We wanted to know if adjustable features, like reclines and various headrest positions, were simple to change. 
  • Ease of Cleaning: Because kids are messy, we required our testers to clean the car seats at least once. Editors wiped or washed cushions and covers according to the manufacturer’s recommendations and made note of any wear or tear issues. 
  • Safety: Our testers took note of special safety features, such as an integrated app, load leg, or side-impact protection. Because all car seats in the US must comply with the same safety standards from the NHTSA, we did not crash-test them.

Our Experts

Before and after testing convertible car seats, we consulted experts in child injury prevention and education. We also spoke with Child Passenger Safety Technicians (CPSTs) and other medical experts for guidance on what to look for in convertible car seats. The experts included: 

  • Benjamin Hoffman, M.D., a pediatrician and nationally recognized child injury prevention and education expert
  • Petra Vybiralova Stanton, MSW, CPSTI, Injury Prevention Program Manager at Johns Hopkins All Children’s Hospital in St. Petersburg, Florida
  • Sarah Ross, RN, CPST, who assisted us with installing the car seats at our Alabama testing lab

Factors to Consider When Buying a Convertible Car Seat

The best seat is the one that fits your child and your car. Here are the main things to look at before your purchase:

  • Ease of Installation and Use: According to Dr. Hoffman, around 80% of caregivers make serious errors when installing car seats. That means you really want to look for an option that’s easy to install and adjust. Installation can be done with the vehicle seat belt or with the lower anchors. With the seat belt method, you thread the vehicle’s seat belt through the car seat’s belt path, which is what attaches the seat to the car. The LATCH system, which stands for Lower Anchor and Tethers for Children, secures the car seat using the vehicle’s lower anchors and tethers. "Many families can find lower anchors easier because they just click in," notes Stanton. "The biggest benefit of LATCH is using the top tether in the forward-facing position. It can eliminate the forward head movement by 4 to 6 inches in a crash. That's a pretty significant amount." 
  • Weight and Height Limits: Pay close attention to the weight and height limits for each position a convertible car seat offers, especially the rear-facing position since your child should remain in this position as long as possible. “One of the biggest mistakes we see parents making is turning their kids around earlier than they need to,” Dr. Hoffman says. With rear-facing limits of 40 pounds or more, convertible car seats allow “virtually every kid to ride rear-facing until at least their second birthday, and that’s our recommendation.” The height limit for rear-facing is generally between 40 and 49 inches. For forward-facing, most convertible seats have a limit of 65 pounds and a height limit of 49 inches. Booster seats typically max out at 100 to 110 pounds and 50 to 57 inches. 
  • Size and Weight of the Car Seat: Convertible car seats tend to be large and bulky, so check the dimensions to ensure the seat will fit properly in your car, especially if you have a more compact model. And don’t assume any seat will fit in an SUV. Think about where the car seat will go and how the front seats are usually adjusted. For example, if the driver is tall and needs their seat far back, you may not be able to fit a large rear-facing convertible car seat behind it. Consider how many other passengers and car seats you need to fit next to the car seat. Keep the weight of the seat in mind as well, especially if you plan to switch it between cars frequently or fly with it.
  • Cost: Some convertible car seats can be quite pricey, but you don’t need to spend more to get better quality. Dr. Hoffman stresses that all car seats have to meet the same safety requirements, so pricier doesn’t mean safer. You might be paying for convenient, but superfluous features, aesthetics, or even the brand name. Decide which features you can and can’t live without when creating your budget. “The safest car seat is the one that is installed correctly, so don’t worry about the bells and whistles of the accessories if you’re not able to install it to be safe for your child,” says Ross. 

How to Use a Convertible Car Seat Safely

It doesn’t matter what kind of car seat you choose: If you don’t use it correctly, it will not provide the best possible protection during a crash. Remember that the American Academy of Pediatrics (AAP) recommends keeping children rear-facing as long as possible, meaning until they reach the highest weight or height allowed by the car seat manufacturer. Keep these other safety requirements in mind: 

  • Ensure it meets U.S. standards. It’s possible to buy European car seats, but safety standards differ. In the US, Dr. Hoffman points out, all car seats must have a five-point harness and a chest clip. “That’s different from European seats, and we have seen in the past couple of years people have inadvertently bought a seat that meets European standards but doesn’t meet American standards, and that’s not acceptable,” he says. If you’re unsure, he recommends going to the car seat manufacturer’s website and making sure it meets NHTSA safety requirements. 
  • Read the manuals. Reading through the manuals of both your vehicle and your car seat is extremely important. Every car is different, and every car seat has different recommendations and restrictions, so even if you’ve installed other car seats previously, read the instructions. Some vehicles don’t have a LATCH system in the center back seat. Lower anchors have weight limits; check your car manuals to find the LATCH weight limit. Keep the manual handy during installation and make use of any video tutorials or instructional apps.
  • Install the car seat correctly. Ensure the seat is snug in the vehicle’s seat; when you wiggle it, the base shouldn’t move more than an inch. The car seat should never touch the vehicle seat in front of it. When you switch to forward-facing, the top tether should be used. "Often, we see families use the lower anchors in the wrong seating position, go over the recommended weight limit of the lower anchors, or have them in the wrong belt path," says Stanton. "Always check the vehicle manual for the correct position to install the car seat, weight limits, and proper routing of the lower anchors or the seatbelt."
  • Register your car seat. The NHTSA strongly recommends registering your car seat once you install it. This signs you up for important recall notices so that you’ll receive necessary safety updates. 
  • Make adjustments as needed. Adjustments will need to be made as your child grows. That’s why it’s important to pick a seat with a harness that’s easy to use. The chest clip should be over the chest bone at armpit level; the straps should be tight enough that you cannot fold them when pinched. The harness is what keeps your child in the seat during a crash. If it’s not tight enough, it could slide open from the force of the crash, and the baby can come out of the seat. 
  • Avoid using additional accessories. Experts strongly advise against using anything that didn’t come with the car seat. This includes additional padding, toys, attachments, and mirrors. Remember that items around the seat, like mirrors or toys, can become projectiles in a crash. 
  • Remove padded clothing, like winter coats, when in a car seat. “Thick padded clothing in a crash essentially compresses, and it’s like there’s nothing there,” Dr. Hoffman explains. “So, when it comes to buckling a child in, they should be wearing nothing more than maybe a thin layer of fleece.” He suggests putting a blanket over them if they’re cold. 
  • Don’t buy used car seats. Yes, the used car seat on Facebook Marketplace might be significantly cheaper than the brand-new one you’ve been eyeing, but Dr. Hoffman doesn’t recommend buying it. “Car seats are designed to withstand a crash, so a car seat that has been in a significant crash should not be used subsequently,” he says. “If a parent or caregiver cannot be 100% certain about the history of the seat, they should not use it, which means they shouldn’t be buying seats at flea markets or consignment stores.” If you’re considering a used seat that you know has not been in a crash, he recommends checking that the seat is not expired. 
  • Have a car seat expert check your installation. You can find one in your area at Cert.Safekids.org. Sometimes your local fire department may also have a technician on hand that will install your car seat or check that yours is installed correctly for free. 

At What Age Should Your Child Use a Convertible Car Seat?

Your child can start using most convertible car seats in the rear-facing position from the day they are born, as many offer weight ranges that start at 4 or 5 pounds. The AAP recommends children use rear-facing seats until they reach the maximum height or weight limit and then switch to forward-facing. The disadvantage of a convertible car seat versus an infant car seat is that you cannot remove a convertible car seat from the base and carry it around or use it in a stroller.

What Is the Safest Spot for a Convertible Car Seat?

The safest place for the convertible car seat is in the backseat, away from airbags. Car seats should never touch the vehicle seat in front of them, so keep that in mind when installing. “The difference between a 6-foot, 5-inch parent and a 5-foot, 2-inch parent in the driver seat will impact that,” Dr. Hoffman says. “That may influence a parent’s decision about where to position the child’s car seat in the back.” Remember that the LATCH system also cannot always be used in the center back seat. 

Who We Are

Katrina Cossey is an Oklahoma-based editor for Parents specializing in parenting, family, and pregnancy content. A devoted mom herself, Katrina has researched thousands of baby products, toys, gifts, and more and personally tested many of them to find the most reliable product recommendations for families. Before testing the Evenflo Revolve360 Extend and Graco Turn2Me, Katrina’s son rode in the Graco Extend2Fit 3-in-1 in one vehicle and the Graco Slimfit 3-in-1 in their family’s second car. Katrina’s favorite car seat? The Graco Turn2Me for its rotating feature, unique and sturdy installation, and spacious cup holders.

Olivia Campbell is an editor at Parents, an experienced journalist and essayist, and a mom to three boys. She’s also the New York Times bestselling author of Women in White Coats: How the First Women Doctors Changed the World of Medicine and Sisters in Science: How Four Women Physicists Escaped Nazi Germany and Made Scientific History.

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Sources
Parents uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Car Seats: Information for Families. American Academy of Pediatrics. 2024.

  2. Car Seats and Booster Seats. National Highway Traffic Safety Administration.

  3. Car Seats: Information for Families. American Academy of Pediatrics. 2024.

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