When I was pregnant with my first child, convertible car seats weren’t even on my radar. I was much more focused on buying an infant car seat — and quite honestly, I don’t think I fully understood how short a lifespan that purchase would have. When I was pregnant with my second, I immediately purchased a convertible car seat, knowing I didn’t want to have to replace a very expensive piece of baby gear a year later.
A convertible car seat can change to adapt to your growing baby’s needs. Install it as a rear-facing car seat when they’re a newborn, then turn it around when your toddler outgrows the rear-facing height or weight limits. Brilliant, right?
There is a catch: To pack in all that flexibility, a convertible car seat will be heavier and larger than an infant car seat. You also can’t pop a convertible seat out of the base and into a stroller, a feature many parents love (especially when they’re running late.) Rather, you'll need to remove your baby each time. Still, that lack of portability may be worth it to you for the value and convenience you get in return.
Not sure if you should invest in an infant car seat or choose a convertible car seat that can be used for both newborns and bigger toddlers? Read on to see if this decision makes sense for your family.
How we chose the best convertible car seats
Every car seat sold in the United States must adhere to the safety standards set forth by the National Highway Traffic Safety Administration (NHTSA), so you can feel confident that the convertible car seat you choose has met their requirements. That means the best convertible car seat for you will depend on your personal situation and preferences. For example, how big your car is, how often you’ll be uninstalling and reinstalling the car seat in different vehicles, and how important certain features are to you.
Per the guidance of leading experts, two members of the What to Expect Medical Review Board, as well as What to Expect staffers and community members, we evaluated and selected the best convertible car seats based on the following criteria:
Weight limits: Confirm the numbers for both rear- and forward-facing positions. Parents who like the idea of keeping their child rear-facing or simply in a car seat (versus a booster seat) for a longer period of time will appreciate higher weight limits. Also note that some convertible car seats may have higher minimum weight limits, such as 12 or 14 pounds, meaning you won't be able to use them right after your baby is born. We’ve listed the weight and height minimums and maximums for both rear- and forward-facing modes to consider when making your decision.
Ease of installation, use and care: The best convertible car seats are those that can be installed and used stress-free. Many car seats use a bubble or dial to show that the seat is in the correct position, while others have ingenious features that make installation with LATCH or seat belts more straightforward. This handy chart from the National Highway Traffic Safety Administration (NHTSA) rates the ease of use for various car seats. Our picks all have an overall ease of use rating of three stars or higher from the NHTSA (and most have four stars).
Also helpful is a car seat that’s easy to maintain. “Spills and other messes are inevitable,” says Suzanne Chan, D.N.P., a board-certified pediatric nurse practitioner and Certified Passenger Safety Technician (CPST). “Finding a carseat that is easy to clean and put back together is a must.” Some (but not all) car seats have fabric that’s machine-washable, which can make cleaning them infinitely easier.
Size and weight: A narrower car seat can be helpful if you have a small car or will eventually need to fit three children into your backseat. If you're planning to travel with your convertible car seat or will be moving it between cars, you may want to choose one that weighs a bit less.
Price: There’s a wide range in terms of price for convertible car seats. A car seat with extra features (think magnetic chest clip buckles, cup holders and even extendable leg rests) is going to cost more than a simpler, but equally safe, option. We prioritized convertible car seats that were less than $600, and most are in the $200 to $300 range.
Longevity: Along with the basic style, which can be used either rear- or forward-facing from infancy through the toddler or preschool years, you might also see three-in-one car seats (which include the option to transform into a belt-positioning booster seat when your child is ready) and four-in-one car seats (also called all-in-one car seats, these are essentially the same as the three-in-one, but you can use them as a backless booster when your child meets the weight and height requirements).