12 Best Convertible Car Seats for Tall Babies (Spacious)

This is the best car seat for tall baby because it is taller than the previous version and gives your baby more space.

This is a car seat with extra legroom because the adjustable anti-rebound panel gives extended legroom and leg support.

This tall car seat gives your baby 2.5 inches more space and allows you to configure the seat in the best way for your seat and your tall baby.

With 12 positions of harness height and 2 crotch buckle positions, this seat will keep your big baby comfortable at every stage.

What We Liked

No-rethread harness
Magnetic harness holders
GOTS cotton insert
Naturally flame-retardant
Ventilation panels in the shell

What Can Be Improved

Strap covers are prone to coming off
The booster function is not long-lasting
The TrueTension system is not considered a lock off

Height Limit: Up to 57 in (145cm)
Rear-Facing Weight: 5-50 lbs (2.3-23 kg)
Forward-Facing Weight: 25-120 lbs (11.3-54 kg)
Seat Weight: 26.6 lbs (12.1 kg)
Dimensions: 26-33 H x 18.5 W x 22.5 L in
Expiration Date: 10 years from the manufacturing date

2. Clek Foonf Convertible Tall Baby Car Seat

With new colors and fabrics, an upgrade from the past version, your tall baby can enjoy extended rear-facing in style.

The best convertible car seats for tall babies have a rear-facing weight limit of 50 lbs.

This tall baby car seat has an adjustable, structural headrest so you can keep your baby safe.

The deep side wings give your tall baby more room, and the 5-point harness grows with your baby.

The smooth recline feature keeps your big baby comfortable as they grow by providing the right angle and enough legroom.

A drawback is that this seat is only suitable for infants with a separate insert.

What We Liked

Narrow design for putting 3 seats across
Rigid LATCH installation is quick and easy
Steel anti-rebound bar for added safety
No brominated and chlorinated flame retardants
Easy access belt path when rear-facing

What Can Be Improved

Doesn’t have a no-rethread harness
It is high on the base when rear-facing
Heavy

Height Limit: Up to 49 in (124.5cm)
Rear-Facing Weight: 14-50 lbs (6.4-23 kg)
Forward-Facing Weight: 22-65 lbs (10-29.5 kg)
Seat Weight: 33 lbs (15 kg)
Dimensions: 28 H x 17 W x 16 L in
Expiration Date: 9 years from the manufacturing date

3. Diono Radian 3QXT Latch All-in-One Convertible Car Seat for Tall babies

The Radian 3QXT is a car seat with extended leg room, which is an improvement from the prior model. The adjustable calf support is great for your tall child when they are forward-facing.

With extended rear-facing, the 3QXT is a great infant car seat for tall babies. This seat adapts as your child grows, so they are comfortable at every stage, weight, and height.

The 12-position headrest makes this a good convertible car seat for a tall child, and the extendable hip flaps give your baby more space.

Although it can be tricky to install, it is worth it to have a seat that fits a wide weight range.

What We Liked

High-quality fabric covers
Machine washable cover
Memory foam seat
8 layers of side impact protection
Steel alloy frame for extra safety

What Can Be Improved

Short buckle strap
Angle adjustor not included
Hard to put the cover back on

Height Limit: Up to 57 in (145cm)
Rear-Facing Weight: 4-50 lbs (1.8-22.7 kg)
Forward-Facing Weight: 22-120 lbs (10-54 kg)
Seat Weight: 32 lbs (14.5 kg)
Dimensions: 28.5 H x 17 W x 16 L in
Expiration Date: 10 years from the manufacturing date

4. Chicco NextFit Max Zip Air Extended Convertible Car Seat

This is the best convertible car seat for big babies because it has 25% more legroom rear-facing and calf support forward-facing.

This extra space is an upgrade from the earlier model. The NextFit Max is a car seat for tall toddler extended rear-facing up to 50 lbs.

The recline angle indicator helps you find the position for your tall baby, and the 9-position headrest automatically raises with the harness, so your tall baby is always safe and comfortable.

The seat is quite heavy and bulky, but the 2-position chest clip and extra space make it a great big baby car seat.

What We Liked

Easy to install correctly with helpful indicators
SuperCinch and LockSure give a secure installation
DuoGuard offers a deep, rigid shell that is comfortable and safe
Dishwasher-safe cupholders for easy cleaning
Easy to remove the cover

What Can Be Improved

The release button is hidden under the fabric
Straps could be longer
Doesn’t work well with leather seats

Height Limit: Up to 49 in (124.5cm)
Rear-Facing Weight: 4-50 lbs (1.8-22.7 kg)
Forward-Facing Weight: 22-65 lbs (10-29.5 kg)
Seat Weight: 26.5 lbs (12 kg)
Dimensions: 22.75 H x 19 W x 20 L in
Expiration Date: 8 years from the manufacturing date

5. Diono Radian 3RXT Safe+ Convertible Big Baby Car Seat

This is one of the best car seats for tall toddlers.

A change since the last version is the adjustable headrest that has 12 positions for tall babies.

With the option of having your baby rear-facing until 50 lbs, this makes the list of the best car seat for big babies.

The 5-point adjustable harness allows you to find the best and safest fit for your tall baby, whether rear or forward-facing.

Installation can be difficult, but it is a small price to pay for a seat with a good height limit and generous room for the legs.

What We Liked

High-quality fabric covers
Machine-washable covers
Fantastic safety features
Narrow but spacious
Good value for money

What Can Be Improved

Passenger leg room in the front is limited
The open back is unattractive
The seat is heavy

Height Limit: Up to 57 in (145cm)
Rear-Facing Weight: 4-50 lbs (1.8-22.7 kg)
Forward-Facing Weight: 22-120 lbs (10-54 kg)
Seat Weight: 30.6 lbs (13.9 kg)
Dimensions: 28.5 H x 17 W x 16 L in
Expiration Date: 10 years from the manufacturing date

6. Diono Radian 3RX Convertible Tall Child Car Seat

The best car seat for tall toddler options has extended rear-facing like the 3RX.

This seat has a 12-position headrest compared to the previous version allowing you to have it adjusted for taller babies.

The infant head support liner keeps your taller baby secure and in the correct position.

The adjustable 5-point harness means that your large baby can be comfortable and safe at all times.

Something to consider is this seat can be hard to install rear-facing because of its height, but this does give your taller baby more space.

What We Liked

Machine washable
Steel-reinforced cup holder
Safety and comfort prioritized
The low profile and shallow sides make it versatile
3 color options

What Can Be Improved

It could have more padding
It can be tricky to tighten
You have to manually re-thread the straps

Height Limit: Up to 57 in (145cm))
Rear-Facing Weight: 5-50 lbs (2.3-23 kg)
Forward-Facing Weight: 22-120 lbs (10-54 kg)
Seat Weight: 28.1lbs (12.76 kg)
Dimensions: 28.5 H x 17 W x 16 L in
Expiration Date: 10 years from the manufacturing date

7. Clek Fllo Convertible Car Seat for Big Babies

Unlike previous versions, the Fllo sits low on the seat and has deep side wings that make for a spacious ride for your big baby.

With extended rear-facing, it is one of the best convertible baby seat for tall baby.

Tall car seats like the Fllo offer an adjustable, structural headrest that you can change to suit your big baby.

The anti-rebound bar gives your tall baby an extra 1-2 inches when rear-facing.

The adjustable crotch strap and 6 different harness heights make up for the fact that it can be tricky to fasten with the seat belt when forward-facing.

What We Liked

No nasty flame-retardant chemicals
Advanced side impact protection
Water0resistant fabric
Removable cushion for belt path access
Clean design that fits well with other seats

What Can Be Improved

No recline feature
The material could be better quality
Only suitable for newborns with an additional insert

Height Limit: Up to 49 in (124.5cm)
Rear-Facing Weight: 14-50 lbs (6.4-23 kg)
Forward-Facing Weight: 22-65 lbs (10-29.5 kg)
Seat Weight: 25 lbs (11.3 kg)
Dimensions: 31 H x 16.9 W x 13 L in
Expiration Date: 9 years from the manufacturing date

8. Diono Rainier 2AXT Prestige Latch All-in-One Convertible Car Seat

Tall babies need a car seat like the 2AXT Prestige that offers extended rear-facing.

It has a higher weight limit of 50 lbs when rear-facing. The extra deep side walls are an improvement from the previous model and give large babies extra space.

Although it is heavy and quite bulky, it is worth it for expandable sides and a long seat bottom that gives your baby more space and support.

This seat has 5 shoulder and 3 buckle positions, so you can customize the fit for your tall baby. With a 12-position headrest, you can feel sure that your tall baby is comfortable and safe.

What We Liked

The seat base has comfortable memory foam
Slim design for 3 across set up
Rear-facing tether for added safety
Angled cupholders mean fewer spills
Super LATCH installation

What Can Be Improved

Installation can be tricky
Not stroller compatible
Very expensive

Height Limit: Up to 57 in (145cm)
Rear-Facing Weight: 5-50 lbs (2.7-23 kg)
Forward-Facing Weight: 20-120 lbs (9.1-54 kg)
Seat Weight: 31.3 lbs (14.2 kg)
Dimensions: 28.25 H x 17.75 W x 15.65 L in
Expiration Date: 10 years from the manufacturing date

9. Peg Perego Kinetic Convertible Tall Baby Car Seat

With improved kinetic pods, this convertible safety seat for tall baby has safely extended rear-facing capability.

This is the best car seat for tall babies because the anti-rebound bar spacer provides 2 inches of extra legroom.

The side impact protection also adjusts to different height positions to keep your tall baby safe.

The chest clip button can be difficult to open, but the no-rethread harness makes it easy to adjust as your baby grows.

This seat also has a 6-position recline so you can keep your big baby comfortable.

Your tall newborn will be snug and secure with the tri-stage cushion.

What We Liked

The fabric is easy to clean
EasyTight LATCH for simple installation
Top tether for added safety
The rebound bar folds down rather than having to be removed
Comfortable for large babies

What Can Be Improved

Recline mechanism gets stuck easily
The lever to release the harness strap is hidden
Cup holder placement is difficult for kids to reach

Height Limit: Up to 49 in (124.5cm)
Rear-Facing Weight: 5-45 lbs (2.3-20.4kg)
Forward-Facing Weight: 22-65 lbs (10-29.5 kg)
Seat Weight: 24.4 lbs (11.1 kg)
Dimensions: 25.75 H x 18.75 W x 26.25 L in
Expiration Date: 10 years from the manufacturing date

10. Nuna Rava Convertible Tall Car Seat

The Rava is the original Nuna convertible car seat. It is a great infant car seat for tall babies because it has laid-back legroom.

The adjustable footrest gives your tall baby 2 inches more space when rear-facing and offers extra support forward-facing.

It is the best car seat for tall 3-year-old with extended rear-facing up to 50 lbs.

It is a heavy seat to move around, but with a non-rethread harness, 10-position headrest, and 5 levels of recline, you can adjust the seat for your tall baby without taking it out of the car.

The 2 position crotch strap is ideal for big babies.

What We Liked

Ventilation panels in the shell
Dual flip-open cupholders
Greenguard Gold certified and safe for your baby
Easy to install
Convenient buckle holders

What Can Be Improved

Not great for preemies
The buckle can be stiff
The seats get hot

Height Limit: Up to 49 in (124.5cm)
Rear-Facing Weight: 5-50 lbs (2.3-23 kg)
Forward-Facing Weight: 22-65 lbs (10-29.5 kg)
Seat Weight: 27.2 lbs (12.3 kg)
Dimensions: 25.2-31 H x 19 W x 16 L in
Expiration Date: 10 years from the manufacturing date

11. Diono Radian 3 R Latch Extended Rear-Facing Convertible Car Seat

This infant car seat for tall babies has been upgraded from earlier versions with extended rear-facing until 4 years old.

This seat grows with your child, offering a custom fit at every stage.

The anti-slip XL comfort harness is ideal for big babies. There are also expandable side wings for extra space.

This is a car seat with the highest height limit at 57 inches and the car seat with the highest weight limit at 120 lbs.

It can be tricky to install, but with an adjustable harness and headrest, you should only have to install it once.

What We Liked

The original 3 across car seat
Folds easily for travel
Machine washable cover
Memory foam seat
Super safe with steel alloy frame and SIP

What Can Be Improved

Heavy
Can be tricky to tighten
No infant insert

Height Limit: Up to 57 in (145cm)
Rear-Facing Weight: 5-50 lbs (2.3-23 kg)
Forward-Facing Weight: 22-120 lbs (10-54 kg)
Seat Weight: 25.9 lbs (12 kg)
Dimensions: 28.5 H x 17 W x 16 L in
Expiration Date: 10 years from the manufacturing date

12. Graco Extend2Fit 3 in 1 Extended Tall Baby Car Seat

This is one of the best convertible car seats for big babies, as the 4-position adjustable extension panel gives your tall baby 5 inches of additional leg room.

This version has been improved with an anti-rebound bar.

With 6 positions of recline, you can easily find the right angle for your tall baby. This seat is wide and tall, which is ideal for bigger babies.

The extension does make this seat very big, and it does take up space.

But the extra room, 10-position headrest, and no-rethread harness make up for it and make this a great seat option for big babies.