The 7 Best Convertible Car Seats for All Ages, Tested by Parents

A good convertible provides a safe and comfortable seat for children of all sizes and suitable ages. Our product tester Tandra, a mom-of-three, found that the Chicco NextFit Zip did just that. The seat not only performed highly for her 4-year-old and 5-year-old, but it was also a secure and supportive fit for her newborn. And when it comes to the most important measure of all—safety in the event of a crash—the NextFit Zip offers peace of mind: It boasts a “Best” crash test safety rating from Consumer Reports and an extremely high overall score. Tandra was very impressed with the safety features. “The car seat felt very secure when using both the LATCH and seatbelt. I felt very comfortable with all my children in this seat. I would rate the safety of this seat better than ones I’ve used before,” she says of the Chicco NextFit Zip, helping to make it our Best of The Bump award for overall best convertible car seat. (See all of this year’s Best of The Bump winners.)

Of course the safest car seat in the world is no good if you don’t install it correctly. The NextFit Zip features an installation feature called SuperCinch: a two-pull method that makes it easier to tighten the LATCH strap. Once the LATCH connectors are in place, the straps you need to tighten are clearly labeled “Pull 1st” and “Pull 2nd.” Daniel Carroll, dad of one and associate director of e-commerce content for The Bump, used a Chicco car seat with his child, and tells us, “The handy labeling is such a small detail but it helps so much. I was such a worrier installing car seats for my daughter, certain I was doing something wrong. Having the simple instructions laid out right on the car seat really put my mind at ease.” Tandra also had high praise for how simple the NextFit Zip makes it to switch between positions. “I loved that the car seat had an easy switch on the seat between rear-facing and forward-facing latching.”

There were a few standout features on the Chicco that you can tell were designed with busy parents in mind. One feature that’s frequently mentioned in parent reviews, and appreciated by Tandra, is the ability to simply unzip the car seat fabric (hence the “Zip” in the name) in order to wash it. Tandra also notes the no-headache harness adjustment system is a simple click-and-slide design that make it easy to adjust with one hand—no rethreading needed at all. Testing the seat out with all three of her children, she loved the fact that it was so simple to modify the fit for each of them. “It was easy to adjust the height and recline for each child,” she says. There’s also a removable, dishwasher-safe cupholder, which as a parent I can tell you is a blessing—I don’t know how many times my toddler has filled her car seat cupholder with sticky, slimy snacks.

If you’re worried about skipping an infant car seat and going straight to a convertible, Tandra has a lot of praise for how this seat performed with her 2-month-old that might set your mind at ease. “It’s built to last for several stages of the child’s life,” she says, noting, “It was well designed for a baby.” The seat also comes with a newborn insert, designed to safely position babies weighing 5 to 11 pounds. Getting her newborn in and out of the car was simple for Tandra, who tells us,“I actually preferred it over our newborn car seat.” If you want to go convertible from day one, this might be the option for you.

Dimensions: 23.1" (L) x 19.4" (W) x 27.1" (H) | Weight: 26.5 lbs. | Weight capacity (rear-facing): 4 to 40 lbs. | Weight capacity (forward-facing): 22 to 65 lbs. | Height limit: 49"

Britax wasn’t kidding when they named this car seat—our Best of The Bump winner for overall best all-in-one car seat—the “One4Life.” As an all-in-one car seat, it transitions from rear-facing to forward-facing and finally to a car seat booster, accommodating kids up to 120 pounds and 63 inches (a high weight and height limit combo that only one other car seat matched from among those we tested) and making it particularly suitable for large and tall kids. But where the One4Life really shines is in its safety features, helping to protect your kid at every stage. A high-strength steel frame keeps the seat structure solid and stabilized, while its SafeCell technology and patented V-shaped tether help protect your little one from extreme crash energy. “The V-shaped tether for forward-facing is a neat safety feature I haven't seen before,” says Holly, our product tester and mom of three, rating the One4Life 10 out of 10 for safety.

A proper install is essential to reap the safety protections of any car seat, and the One4Life is designed for ease of use. The seat's ClickTight feature earned it another 10 out of 10 score for ease of installation, because you can tackle the job in three quick steps—just open the seat compartment, thread and buckle and click it closed. “I loved how secure and tight of an install the ClickTight technology gave the seat,” Holly says. “I couldn't wiggle the seat around at all, and I didn't have to pull super hard on the straps like I normally do.” This type of lock-off tensioner system is recommended by Michael Bloch, a certified Child Passenger Safety Technician (CPST) and Child Car Seat Test Project Leader at Consumer Reports. “Belt lock-offs, particularly those that also help to tension the belt, generally make installation easier and help with getting tight installations,” he explains.

Another key way to keep your child safe is to leave them rear-facing as long as possible, and the One4Life is a good option for extended rear-facing. Not only does it have a rear-facing weight limit of 50 pounds (which is on par with most of the seats on our list), but it also keeps older toddlers comfortable—something not every convertible can say. “The seat seemed pretty comfy for my 3.5-year-old (who is slightly above-average height) to be rear-facing,” Holly reports. “Although he typically rides forward-facing, he didn’t mind sitting rear-facing in the seat and I think he’d be able to fit for at least a while longer before he would outgrow the limits and no longer be comfortable.” In fact, Holly’s son used this car seat for a 7-hour road trip “with no complaints,” she tells us—quite the testimonial, as any toddler parent knows!

This car seat offers several features to ensure a proper fit for your child, including a nine-position recliner, 15-position headrest and no rethread harness. “All three of my kids could sit comfortably in this seat because of how adjustable it was,” says Holly, whose kids range in age from 9 months to 6 years old “I loved the no rethread harness height adjuster. It was very easy to change for each of the kids.” And as a mom who’s concerned with what kinds of toxins might be touching my child’s skin, I love this seat’s fire-retardant-free design.

Bottom line, this is a car seat that will keep delivering year after year. “Overall, I thought it was a great seat and good design for a convertible seat, with my favorite feature definitely being the ClickTight installation!” Holly says. “It’s a wonderful seat that can grow with your child, all while keeping them happy and comfy.

Dimensions: 19.5" (L) x 20.5" (W) x 25" (H) | Weight: 29.5 lbs | Weight capacity (rear-facing): 5 to 50 lbs. | Weight capacity (forward-facing): 22 to 65 lbs. | Weight capacity (booster): 40 to 120 lbs. | Height limit: 63"

If you’re expecting a budget-friendly pick to offer basic functionality with none of the desirable extra features offered by more premium models, the Graco Extend2Fit convertible car seat will make you do a double-take. Despite its reasonable price, this Best of The Bump winner for best budget-friendly convertible car seat doesn’t compromise on safety (with a good crash test rating from Consumer Reports) and is easy to use and comfortable for a wide age range, according to our product tester and mom of three, Michelle. But the biggest surprise lies in its innovative extendable leg panel that enables children to sit in the safer rear-facing position for longer. “There is a greater risk of head and neck injury if you transition your child forward-facing too early,” advises Emily A. Thomas, a certified Child Passenger Safety Technician and associate director of auto safety at Consumer Reports. “Children are more comfortable rear-facing than we may perceive because their bodies are more flexible and they find ways of arranging their legs that make them more comfortable,” she adds. And it’s exactly by offering rear-facing children more legroom that the Graco Extend2Fit has become such a parent-favorite.

The extendable leg panel offers four positions when rear-facing and gives taller children an extra 5 inches of legroom. The seat also has an impressive rear-facing weight capacity of 50 pounds (matching most of the more expensive car seats on our list), all of which was appreciated by Michelle. “All three of my kids are still rear-facing and the bigger two don’t have any complaints!” reports the mom of a 9-month-old, 3-year-old and 5-year-old. “I love that it’s so easy to do extended rear-facing in this seat. Even my 5-year-old is well within the limits, so if rear-facing as long as possible is important to you then this is a great option!”

While Michelle preferred the LATCH install over the seatbelt, which she found fiddly, she appreciated the no-rethread harness (“adjusting the harness both up and down is so easy!”) and the overall lightness of the seat compared to others she’s used. Indeed, the Extend2Fit is one of the lightest convertibles on the market, weighing in at 19 pounds. It also comes with two cup holders, although it’s worth noting these are more square-shaped than circular and may not fit larger cups.

Overall, the family-friendly features and extended rear-facing design at a budget-friendly price point impressed Michelle. “For the price, this seat is so worth the money,” she concludes.

Dimensions: 21.5" (L) x 19.5" (W) x 23.5" (H) | Weight: 19 lbs. | Weight capacity (rear-facing): 4 to 50 lbs. | Weight capacity (forward-facing): 22 to 65 lbs. | Height limit: 49"

Our community says:

An all-in-one removes the need to buy a new car seat each time your child moves on to the next height and weight stage, which can save you significant money in the long run. However, as a mom of two, I know I don’t want to cut corners on an important product like a car seat—so can a lower-priced all-in-one really deliver? When it comes to the Graco Extend2Fit 3-in-1, the answer is yes. It not only boasts a “Best” crash testing score from Consumer Reports and a comfortable ride for a range of ages, but it’s also designed to enable rear-facing for longer, earning the Extend2Fit 3-in-1 a Best of The Bump award for best budget-friendly all-in-one car seat.

A close cousin of the Graco Extend2Fit (our choice for best budget-friendly convertible), the obvious difference between the two is that the 3-in-1 takes your child a stage further by transitioning into a booster seat. Product tester Madison, mom of a 7-month-old, 2-year-old and 4-year-old, loved how well it suited all three of her children. “All three of my kids fit great in this seat. It’s roomy, but still provides adequate support,” she says. The seat was also snug enough for on-the-go naps, with Madison noting, “Both my younger kids slept like normal and seemed comfortable.”

This 3-in-1 seat shares the 50 pound weight capacity of the 2-in-1 Extend2Fit version when rear-facing and sports the same extendable foot panel. The innovative four-position foot panel adds an impressive five extra inches of legroom, and together, these features make it a great all-in-one option if you’re looking to keep your children rear-facing for as long as possible. “I love the panel that extends to provide additional leg room to keep my toddlers rear facing longer,” says our product tester Madison. “This is a huge reason why we prefer this seat. It allowed my 99th percentile son to rear-face until he was almost 4 years old.”

Where the two seats differ is that the 3-in-1 is surprisingly slightly more compact, with a narrower and shallower footprint. When used in its most upright position, it can fit in a number of smaller cars, but when fully reclined it does require more space.

For Madison, where the Extend2Fit 3-in-1 really shines is its ease of use with her growing family. “The no-rethread system is a lifesaver!” She adds, “Kids grow so fast, and I can quickly raise the straps up a notch when needed.” And getting your child in and out of the seat is a breeze too. "This seat is super easy to get babies and toddlers into," she notes. “My toddlers are able to climb in themselves and start the buckling process.” All in all, Madisons says, “This seat allows my kids to be as safe as possible while still staying comfortable.”

Dimensions: 20.8" (L) x 19" (W) x 24.5" (H) | Weight: 20.5 lbs. | Weight capacity (rear-facing): 4 to 50 lbs. | Weight capacity (forward-facing): 22 to 65 lbs. | Height limit: 49"

Our community says:

You can pick a standout car seat, but don’t make the mistake of simply assuming it’ll fit in your car, especially if you’re tight on space. “All the bells and whistles and ease-of-use features don’t necessarily mean the car seat will fit in your vehicle properly,” says Sagan, a Child Passenger Safety Technician. The Britax Poplar S is the slimmest car seat on our list at only 17 inches wide—so slim that Britax says you can easily fit three of these side-by-side in most cars. Our product tester Christina, a mom of three, especially loved how narrow this car seat is, saying, “Out of all the car seats I've used, this one is a good size with durability. I positioned my car seat in the backseat and it fit well in the back along other car seats.”

The slim design certainly doesn’t take away from safety. The seat is designed with a solid carbon steel frame, SafeCell crumple zones and a rebound bar to handle the energy of a crash, which Christina loved. “This felt like the most secure car seat I've ever used,” she says. “I have used some that seem like they would collapse in an accident, but this one is definitely durable and I don't have any safety concerns regarding the use of this car seat.” Nailing a proper install is reassuringly easy, thanks to Britax’s user-friendly ClickTight technology and bubble level indicator. And to keep kids rear-facing for longer, the Poplar S offers a 50-pound rear-facing weight limit. “These [safety features] are extremely important to me and would have persuaded me to buy this car seat,” Christina says.

The Poplar S also proved comfortable for Christina’s kids. “My toddler loved this seat! The headrest was very supportive for each age and napping was easy,” notes Christine, adding that the no-rethread harness was “easy to use and adjust the height.” With its outstanding safety features combined with its impressive narrow design, the Britax Poplar S earned our Best of The Bump award for best slim convertible car seat, and is a long-term choice for Christine. “This is a very durable car seat,” she reports, “which will definitely last through several children.

Dimensions: 20.5" (L) x 17" (W) x 23.5" (H) | Weight: 28 lbs. | Weight capacity (rear-facing): 5 to 50lbs. | Weight capacity (forward-facing): 30 to 65lbs. | Height limit: 49"

If you're looking for a sturdy car seat that’s also incredibly easy to carry and move between vehicles, consider the Cosco Scenera NEXT, our Best of The Bump winner for best portable convertible car seat. Weighing just 6.8 pounds (yes, less than an average newborn!), it’s one of the lightest car seats on the market, convertible or otherwise—perfect for families who regularly switch between cars or want something grandparents can easily handle. My husband and I regularly trade car seats between our vehicles, and let me tell you, our big, bulky seats are not fun to reinstall each time. If you really want to take this seat on the go, it’s also FAA-approved so you can use it on an airplane.

If you’re worried that “light” means “flimsy,” it’s worth noting that the Scenera NEXT earned strong crash test scores from Consumer Reports, even outperforming pricier models. Our product tester Amparo told us it felt “safe and secure,” and that she had no concerns about her child’s protection.

Installation is also a breeze, which matters when you're dealing with more than one vehicle or with taxis or rideshares. “Rear-facing was super easy to latch,” Amparo says about the setup process using the LATCH system. “I just used the written instructions since they were super clear and easy to understand, so I didn’t feel the need to watch a video.”

While this car seat is easy on your arms and your wallet (at $60!), it’s important to know that it won’t be your child’s forever seat, and this is partly why it’s such a good price. With a weight limit of 40 pounds—which varies by child, but is roughly around 4 years old—it’s great for infants and toddlers, but you’ll need to transition to another option once your child outgrows it. Still, it’s a smart and affordable solution for semi-long-term use, everyday portability or as a backup seat for relatives and caregivers.

Dimensions: 30" (L) x 18.1" (W) x 31.8" (H) | Weight: 7.8 lbs. | Weight capacity (rear-facing): 4 to 40 lbs. | Weight capacity (forward-facing): 22 to 40 lbs. | Height limit: 46"

Our community says:

For parents who want a car seat that’s cutting-edge in its design and safety, the babyark, our Best of The Bump winner for best smart convertible car seat, sets a new standard. It’s packed with intelligent features that go far beyond the basics, including an app that connects via Bluetooth to 14 different sensors built into the seat. It’s a premium car seat, and yes, it comes with a premium price tag. But as product tester Melissa puts it, “The babyark is an investment in the safety of your child.”

The babyark’s tech-forward design connects to an app on your phone that helps ensure that the seat is being used safely, starting with a correct install. It walks you through installation with a step-by-step guide based on your baby’s age, while a green light and 14 built-in sensors confirm when the seat is properly secured. “Car seats are only as safe as they say when installed correctly. The fact that it lets you know it is installed correctly [with] the green light and app message gives me peace of mind that my children are safe,” Melissa says. The SmartGuide app also monitors the seat’s rear- and forward-facing orientation and harness fit, so you can feel confident that you’re using it correctly as your little one gets older. Additionally, the app will alert you if your child’s buckle is undone while driving or if you accidentally forget your little one in the back seat—a smart detail that Melissa called “a great feature, especially in the hot summertime.” It should come as no surprise that she awarded the babyark perfect 10 out of 10 scores for ease of use, installation and safety.

It’s not just the smart tech that impressed us. The babyark includes additional safety features, like a stabilizing leg, an anti-rebound bar and side impact protection wings (which are highly recommended by Sagan). “The anti rebound bar is very sturdy and doesn’t get in the way of everyday use,” says Melissa. “I also like knowing it’s another feature for keeping my kids safe in the car.” And with an incredibly high 55-pound rear-facing weight limit, it supports extended rear-facing and then some.

In a rare move for car seats, the babyark has no expiration date, thanks to its durable materials—instead, you’re eligible for a free babyark check-up after 10 years. Melissa sees it as a long-term investment: “I think it’s worth the price for a seat you can use with multiple children,” she shares. “I’ll use the seat now with my older kids, and for many more years to come with my 4-year-old."

EDITOR'S NOTE: Since we tested this product, babyark has introduced a new model, which replaces the carbon fiber in its frame with a D3O polymer—a material usually found in professional sports helmets—and adds a seatbelt tensioner and shorter LATCH connectors to take up less real estate in your car. All of the other features we reviewed above are the same. The Bump plans to test the new model of babyark in the near future.

Dimensions: 30" (L) x 17" (W) x 27.5" (H) | Weight: 27 lbs. (seat); 20 lbs. (base) | Weight capacity (rear-facing): 4 to 55 lbs. | Weight capacity (forward-facing): 22 to 65 lbs. | Height limit: 49"