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Best Convertible Car Seat For 2021 Reviews And Guide

Best Convertible Car Seat For 2021 Reviews And Guide

As a parent, you're going to need a ton of baby gear. While trying to get everything your bundle of joy will need, a  best convertible car seat is an essential. Meant to keep your child secure, safe, and comfortable, you are going to want the perfect car seat Instead of buying several seats throughout your child's lifetime, it is best to find a seat that can do it all.

Convertible car seats can do just that! These types of car seats will "'grow' as your child does, which will save you some time and money. Below are some convertible car seats that I highly recommend, and believe to be worth your investment.

Best Convertible Car Seat - Comparison

Our Selected Convertible Car Seat Reviews:

Graco Rapid Remove Convertible Car Seat Review

Safety : You will never have to worry about your child's safety, as this seat has a steel reinforced frame as well and energy-absorbing EPS foam. The manufacturer for this seat states that the harness and headrest adjustments are easy to make, but resilient enough to keep your child safe at all times.

It has been tested for side impact and has proven to be one of the best currently on the market This seat has been engineered and crash tested to exceed US standards set by FMVSS 213 (Federal Motor Vehicle Safety Standard No 213).

Size: This is a seat that is a 3-in-1 car seat, which means it designed to hold a child as little as 4 pounds, and as much as 120 pounds. The rear-facing position is designed for a child weighing between 4 and 40 pounds.

Once your child has outgrown that orientation, they can be switched to the forward-facing position which is meant for a child weighing 20 to 65 pounds, as long as they are 49" (4'1'') or shorter.

There is also the high-back and backless booster feature that is perfect for a child weighing between 40 and 120 pounds and measuring 38" to 51" in height (3'2" to 4'9'').

Comfort: Your child is sure to enjoy the integrated cup holders, which are perfect for holding drinks or snacks while on a trip. The headrest has 10 different positions to ensure your child will always be comfortable while on a drive no matter what size they are.

Unlike some car seats, this seat's harness can be adjusted without needing to be rethreaded. This seat's cover is easy to remove and is washable. For smaller-than-normal infants, this seat has plush inserts to keep your child safe and comfortable.

Evenflo Symphony All-In-One Convertible Car Seat Review

Safety: This car seat has a steel-reinforced frame that is sure to keep your little one safe. Its e3 Side Impact Protection reduces the force from side impact crashes significantly.

The infinite slide harness slides easily for an accurate fit. This seat is also designed to recline in multiple positions, allowing your child to be comfortable while asleep or awake.

One reviewer on Amazon gives this seat 5 star as it saved their daughter's life during a car accident. While the vehicle was badly damaged on the side where the child was located, this seat kept the child completely safe.

Size: This seat is also a 3-in-1 seat that is designed to hold a child weighing from 5 to 110 pounds. When rear-facing, it can safely hold a child between 5 and 40 pounds, that measure up to 50" (3'4").

The forward-facing orientation is meant to hold a child weighing 22 to 65 pounds, and measuring up to 50" (4'2''). This seat only has one booster set, and it is designed for a child between 40 and 110 pounds, measuring 43" to 57" (3'7" and 4'9''). The seat itself weighs approximately 21 pounds.

Comfort: Your child is sure to enjoy the elastic cup holders that are on the side, which is the perfect potion for your child to access their drink. This seat is made of a soft material that does well to not attract heat, which will keep your little one cool year round.

There is head padding installed in order to keep your child's head and neck comfortable whether they are asleep or awake. It is also fitted with buckle pockets that will keep your child from getting burns during hot weather.

Maxi-Cosi Pria 70 Convertible Car Seat Review

Safety: This seat is widely reviewed as being one of the safest on the market One Amazon customer shares how this seat saved their child's life. The parents were t-boned on the side where the child was seated, but the child has unharmed due to the incredible safety of this seat.

This review and pictures can easily be found on Amazon. This seat is equipped with an advanced cushion systems that will protect your child's head at all times, especially during a side impact crash. Overall, this seat is designed to exceed exceptions when it comes to multi-directional crash management.

Size: Unlike the other two seats mentioned so far, this seat is not a 3-in-1. This convertible seat is designed to hold a child from 9 to 70 pounds.

The rear-facing orientation is meant for a child weighing between 9 and 40 pounds, while the forward-facing orientation can comfortably hold a child weighing between 40 and 70 pounds, measuring up to 52" (4'4"). This seat weighs approximately 23 pounds.

Comfort: This seat is made of a material that draws sweat and other fluids away from your child, keeping them cool and dry at all times. Your child is sure to enjoy the integrated cup holder that is easy to access.

The body pillow is comfortable but can be removed at any time very easily. The straps are cushioned in order to keep your child comfortable at all times while also keeping them strapped in safely. The seat is easy to recline, which is perfect for naps during long drives.

Adjusting the headrest and harness are easy to do and does not require rethreading. Speaking of the headrest is it positioned in such a way to keep your child's head from rolling around while they are sleeping. This seat's cover is also removable and machine washable.

Safety 1st Grow 3-in-1 Convertible Car Seat Review

Safety: This seat has excellent side impact protection that has been put to test by one Amazon customer. Their child was left unharmed from a car accident because of this seat. This customer's review is easy to find on Amazon, and the pictures will astound you.

The head cushions will keep your child's head from jerking around and will prevent any injuries from a side impact collision. While I was unable to find what sort of cushions are used for this seat, the manufacturer of claims that it exceeds federal safety standards set by the US.

Size: This seat is a 3-in-1, which means it is designed to last your child the entire time he or she needs a car seat. When installed as a rear-facing seat it can hold a child weighing from 5 to 40 pounds, measuring 19" to 40' (1'7" to 3'4").

As a forward-facing seat it can hold a 22 to 65-pound child measuring 29" to 49" (2'5'' to 4'1"), while the booster can hold up to 100 pounds and a height of 43' to 52" (3'7" to 4'4"). This seat weighs approximately 15.4 pounds.

Comfort: This convertible seat has several reclining positions to keep your child comfortable at all times. The seat pad is easy to remove and washable, so spills and messes will never be a big deal.

Instead of clips, you have to dig for, this seat's harness is kept in an open position by its harness holder, which makes it easier and quicker to get your child in and out.

There are 2 integrated cup holders that are the perfect size and location for your child to keep his or her drink and snacks and are easy to remove and wash.

Britax Marathon Convertible Car Seat Review

Safety: This seat has safe cell impact protection that is designed to keep your child safe by absorbing the impact from a crash. The two layers of side impact protection on this seat goes beyond federal safety standards, and the frame of the seat is made of reinforced steel.

EPP foam is used as padding, which is an environmental friend and does not give off a gas like EPS does. All of this, combined with the impact absorbing harness pads, is more than capable of keeping your little one safe should a crash ever occur.

Size: This seat can be used as both a rear-facing and forward-facing car seat. When installed as a rear-facing seat, it can hold a child weighing between 5 and 40 pounds.

The forward-facing orientation is able to safely hold a child weighing between 20 and 65 pounds. Both positions claim to comfortably hold a child that measure up to 49' (4'1").

Unlike some competing seats, this one is not overly bulky and is sure to fit in one seat without taking up excess room on either side.The seat's overall weight is approximately 19.5 pounds.

Comfort: With all the protection mentioned under Safety, it may seem like your child will be uncomfortable. That is not the case! This seat is made of a soft, comfortable material that your child is sure to enjoy.

This seat has 3 different reclining positions, and the harness has 10 easily adjustable positions. It may take a little adjustment the first time your child sits in it, but this seat guarantees comfort just like it guarantees safety.

The body pillow, which is typically used for smaller-than-normal infants, is easy to remove. The seat cover can be removed and machine washed easily.

Chicco Nextfit Zip Convertible Car Seat Review

Safety: The frame of this seat is steel reinforced, which is sure to resist any force from a crash. This seat's manufacturer claims that it is installed with energy absorbing foam that exceeds the requirements of side-impact protection. It has been crashing tested, and scores close to the top with other competing seats. The harness is padded for extra protection but stays comfortable for your little one.

Size: This seat is another one that can be installed as either rear-facing or forward-facing, but is not a 3-in-1. If your child weighs between 5 and 40 pounds, they will comfortably sit in the rear-facing position.

For children weighing between 22 and 65 pounds, the forward-facing position works perfectly. The seat itself weighs right at 25 pounds, which is about average on convertible car seats.

The manufacturer claims it is about average size when it comes to dimensions. This seat will fit perfectly in the backseat of your car without taking up any excess space from the seats on either side.

Comfort: The fabric of the seat is made of a soft material that won't chafe your little one's skin, and is easy to remove and wash. There is a bubble level installed that will help you correctly level the seat so that your child is always comfortable and safe.

Like many of its competitors, this seat is able to recline, but instead of the standard 6 positions, this seat had 9. The headrest can be adjusted to 6 different positions that ensure it will hold your child head safely and comfortably until they outgrow the seat.

You will be able to adjust the harness to 5 separate positions without rethreading it The cup holder in this seat is thermal-insulated in order to keep your child's drink at that perfect temperature for any ride.

Diono All-In-One Convertible Car Seat Review

Safety: This seat is rated as one of the safest seats available today due to its full steel frame and aluminum reinforced sides. It is lined with thick, energy absorbing EPS foam that has been tested for crash protections.

A Safe Stop energy absorbing harness is also installed as an extra protection and will keep your child safe while in the forward-facing position. The rear-facing position has a tether capacity that will reduce seat rotation during an impact.

Size: This seat is the perfect 3-in-1 seats that are sure to grow as your child does. When installed as a rear-facing seat, it can safely hold a child weighing between 5 and 45 pounds.

The forward-facing position is made for children weighing between 20 and 80 pounds, as long as they are under 57" (4'9''). Once your child outgrows that position, the seat can be converted to a booster that is able to hold up to 120 pounds and up to 57" (4'9").

The manufacture claims that three of this seat can fit side by side in the backseat of most mid-size cars. When not in use, this seat can be folded easily in order to be stored or carried.

Comfort: The interlocking knit fabric is both stylish and comfortable for any ride duration. This seat's deep shell adds extra comfort for the rear-facing position.

Sides that expand, when paired with the longer seat bottom, give your child better leg support and will keep him or her cozy.

The body and head support cushions are guaranteed to keep infants and babies snug and correctly positioned so they stay comfortable while in the seat. The single cup holder is in the perfect position to be easily accessible.

Graco Rapid Remove Convertible Car Seat Review

Safety: This seat is said to exceed exceptions for side impact protection. As your child grows, you can adjust the headrest and harness in one easy step. This seat also is equipped with a level indicator that will help you to correctly install the seat, which will ensure your child's safety.

The EPS foam in the seat, when paired with the deep side wings, will absorb any energy from a side-impact collision. This the seat has been crashing tested and meets the US safety standards set by FMVSS 213.

Size: This seat is designed to be used as a rear and forward facing car seat When your child weighs between 4 and 40 pounds, they will safely and comfortably fit in the rear-facing position.

The forward-facing position is designed to hold a child weighing between 22 and 65 pounds. This seat weighs approximately 19.3 pounds.

I could not find any height restrictions, but it most likely can hold a child that isn't taller than 49" (4'1"), as that is standard for a most rear and forward facing car seats.

Comfort: The harness is easy to adjust without needing to be rethreaded, and the headrest can be adjusted to 8 positions in order to ensure your child is properly secured no matter which position he or she is sitting in.

This seat has a Rapid Remove seat cover that can be taken off without uninstalling the seat, and is machine-washable, as are the seat cushions.

Your child is sure to enjoy the conveniently placed cup holder while on long car rides. Like most convertible car seats, this seat is able to be reclined in 3 positions, which will perfect for a napping child.

Things to consider before choosing convertible car seat:

Before buying best convertible car seat for your baby you need to keep in minds a few things. These things are described below in brief:

The Size of Your Child:

As pointed out in the reviews above, each seat has a different minimum and Maximin weight and height for the child that it can hold. If a child that is too big or too small is placed in a car seat not designed for his or her size, he or she will not be safe during a collision.

If you are looking to buy a seat before your child is born, you should pay close attention to the minimum weight of the seat, as it is arguably the most important While you can change the position your child is seated in once they start to weigh more, you should never use a car seat that is not designed to hold a child that does not meet the minimum weight required.

Size of The Seat:

While most seats weigh under 30 pounds, some are much lighter than others. The weight does not affect the safety of the seat but is merely a convenience for the parent who has to carry and install it. The dimensions also vary from seat to seat, so you will need to know the approximate size your car will be able to safely hold.


Some seats have features that others do not Do you want your child to have one or two cup holders? If your infant is smaller-than-normal, does the seat have an infant insert that will keep them safe?

Not all seats have machine washable seat covers, which means you will need to hand wash it if any mess is made. Some car seats have more reclining positions than others, and some are a little wider so they will take up more room in your back seat.

Do You Want a 2-in-1 or a 3-in-1?

As the reviews above indicated, not all convertible car seats are 3-in-1. Some are built only to be rear and forward facing seats, That being said, these seats that only have two positions work just as well as a 3-in-1.

Buying one of that kind of seats just means you would have to buy a separate booster seat once your child outgrows the forward-facing position. If you do not want to make more than one purchase, a 3-in-1 seat would be perfect for all your needs.

Safety of The Seat:

Even though all car seats that are sold in the US need to meet certain safety standards, not all seats are made equally safe. The reviews above investigate just how safe each seat is, and I found that some seats exceed standards while others only meet the same standards.

You never know what will happen while on a drive, and a car seat holds your child's life for as long as they are sitting in it When it comes to my child's safety, I want to have the safest seat on the market.​


Children are much messier than adults; it's a fact of life. Whether it's spilled drinks food, an accident, or a bout of car sickness, your child's car seat is bound to get dirty at some point When this happens, you are going to want the car seat to have an easy to remove seat cover.

While most convertible car seats have this feature, not all do. You should make sure the seat you want has a cover that has the ability to be removed and washed in whatever form, hand wash or washer, you want.


While I did not investigate the warranty of each seat reviewed above, not all convertible car seats have the same warranty length. Some last as little as 6 years and some have a lifetime warranty. If this is a concern for you, you will need to investigate the warranty for each car seat you are looking at buying before making your final decision.​

Final Thoughts:

A car seat is designed to hold the life of your child, so it is only natural to want the best one All of the convertible car seats mentioned above are great choices, and I recommend each one. They all are extremely safe, and very convent as they grow with your child.

My personal recommendation would be the Britax Marathon G4.1 Convertible Car Seat, as it has the highest user rating across the board. Not only that, but it was one of the top safety rated convertible car seats I mentioned in my reviews.

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