The Best Car Seats for Big Babies in 2025

If you are looking for the best car seats for big babies, this post is for you. Having two kids myself, I have understood the need for getting a car seat for a big baby. And even if you don’t have a “big baby,” you still want to get a safe, quality, and reliable car seat that will grow with your baby. After all, a car seat is an investment. So after lots of research, here are the best car seats for big babies in 2025.

Understanding Types of Car Seats

Infant Car Seats

Infant car seats are good for newborns and young babies. When your baby is first born, you are going to want a car seat that you can take into the hospital to bring out to your car. The hospital will not let you leave without a properly installed car seat. So this is important. 

The problem with an infant car seat for bigger babies is that they are typically lower height and weight limits. But they will usually fit into a travel system or hold your baby better than a bigger car seat. Consider a cheaper alternative when looking for an infant car seat because it is not going to last your baby as long.

Convertible Car Seats

After trying so many different kinds of car seats, I realized that the convertible car seats are really the best. Infant car seats are great, but they grow out of them so fast. With those high price tags, it just isn’t worth it. 

Investing in a high quality, convertible car seat was the best decision that we ended up making. They have higher weight and height limits, they can be used for so much longer, and you don’t need to continue upgrading to a new one all the time. 

We ended up getting 5 car seats before we realized this, so don’t be like us. I prefer the all-in-one car seats to anything else which is why we ended up sticking with the NUNA Exec. 

We also had the DOONA carseat that we used for both of our kids because we travel and go to so many places. Convertible seats are best for staying in the car where the DOONA is great if you are going around a lot.

All-In-One Car Seats

All-in-one car seats are best for parents who want a car seat that grows with their child that they can use long term. These car seats are the best option for bigger babies. When I was looking at car seats for my kids, I decided on an all-in-one car seat. 

My only concern…. How were they going to fit in there are a little baby????

Well, nowadays, they make really good inserts that come with the all-in-one car seats that can hold your baby when they are little.

Booster Seats  

When your baby is older, they will eventually grow into a booster seat. Since they will not be in one for many years, we don’t need to worry about it yet. But just to give you the information I wish I had. A booster seat is made for kids who have outgrown their seats, but are not tall enough for an adult seat. For bigger kids, a booster seat might be what you need earlier than you would think.

Best Convertible Car Seats For Bigger Babies

GracoExtend2fit

This car seat is a really great car seat for big babies for many reasons. This car seat’s weight limit for rear-facing is up to 50lbs which is a lot higher than a lot of other car seats. 

Since rear-facing is the safest option for babies, this is great for their safety and is more comfortable for them longer. 

It also has an extendable legroom panel which makes car seats so much more comfortable. 

The car seat that we initially got for our toddler was really great….but there was no support on his legs. 

He was too big and his legs dangled over the edge of the car seat even though he fit in it. I felt so bad so we ended up getting an entirely new car seat just because of this feature. 

• Rear Facing: 4-50lbs

• Forward-facing: 22-65lbs

• These higher limits are great for bigger babies and toddlers for a longer period so that you can use them longer and keep your baby safe. 

• Space Saving One of the hardest parts about car seats that can fit big babies is that the car seats are big. The design of this car seat makes it so that it does not take up too much space and it can fit nicely in the car. 

Britax Boulevard 

This car seat is another highly recommended car seat for big babies. It also has the extended rear-facing capabilities which is the most important feature in a car seat for big babies.

Here are some helpful facts to consider about this car seat: 

• Rear-facing 5-40lbs

• Forward-facing 65lbs and 49inches tall 

• Adjustable harness and headrest

• Multiple recline positions When you are looking for a car seat for big babies, you usually get tall ones that are uncomfortable and don’t have the capability to recline. So this is a really nice feature. 

If you are looking for a rotating car seat for big babies, this would be my recommendation. There are so many reasons why NUNA is a great brand. But there are even more reasons to get a 360 degree rotating car seat for big babies. 

When you have a big baby the last thing you want to do is struggle to lift them into your car. This would be my top pick when it comes to the best rotating car seats.  

Important Features: 

• 360 rotating design

• Rear Facing 5-40lbs 

• Forward Facing up to 40lbs 

• Extended size and weight limits

• Premium safety features

• Comfort features for big babies On this car seat, there are 10 recline positions which is so helpful for keeping your baby comfortable when they are asleep or awake. 

While this car seat does have slightly lower weight limits for bigger babies, it is a really high-quality and safe carseat. The 360 feature makes it extremely convenient and make up for the weight limit restrictions.

Nuna RAVA 

This car seat is a really high quality car seat that will last your child a long time. Nuna makes the best toddler car seats and the best infant seats. This one is like a hybrid of both. There are so many types of car seats and this one is right in the middle. 

• Up to 50 pounds 

• Forward Facing up to 65 pounds 

• Extended size and weight limits 

• Premium safety features

 

Best All-In-One Car Seats For Bigger Babies

Nuna Executive 

This car seat is my personal favorite. If you can get over the sticker shock and buy it, you will definitely be happy. At first, I thought it was “too big” for a big baby. But the inserts make it so that you can fit any size baby. 

When you are considering the cost, consider this. With this car seat, you don’t need to buy an infant seat. The height limit is 57inches which is taller than most 8 year olds. You also won’t need to buy a booster seat. I think this is the best convertible car seat on the market. 

• Rear facing 50lbs 

• Forward-facing 65lbs.

• Safety This car seat has some of the top safety features on the market 

Graco 4Ever DLX 

This car seat is a really good option for an affordable price. It has all of the key features that would make this a great car seat for big babies without the price tag. It has been tested and improved with world-class innovation. This is also a really reliable brand. 

• Rear facing 40lbs 

• Forward-facing 65lbs.

Diono Radian 3RXT

This is another option that is a great car seat at a good price. It is not the cheapest option out there, but it is in the middle of the road when it comes to car seats. There are so many types of car seats, but this one is a good option if you are looking for one that will last a long time. 

• Rear facing 50lbs 
• Forward-facing 65lbs.
• Features This car seat is slim and you can fit 3 across. This is great for multiple kids or triplets. It is also foldable for travel on top of it. If you have a smaller back seat, this might be best for you. 

Best Infant Car Seats For Bigger Babies

Chicco Keyfit 

If you are looking for an infant car seat for bigger babies, the Chicco Keyfit is a great option. It has much higher weight and height limits for an infant seat. 

• Weight range 4 to 30 pounds 

• Height Limit up to 30 inches tall 

• These limits allow bigger babies to use the infant seat for so much longer than competitor seats

• Chicco is a really good, safe and trustworthy brand 

Graco SnugRide SnugFit 35DLX 

• Weight range 4-35 pounds 

• Height limit up to 32 inches 

• Adjustable headrest 

Nuna Pipa RX

• Weight Range 4-32 pounds 
• Height Limit Up to 32 inches 
• Lightweight Only 7.6 pounds without the base

Uppababy Mesa 

• Weight Range 4-35 pounds 
• Height Limit Up to 32 inches 
• Lightweight adjustable head rest and can connect to Uppababy stroller systems

Chicco Fit2

• Weight Range 4-35 pounds 
• Height Limit Up to 35 inches 
• 2 stages one for infants and one for toddlers up to 2 years old 
• Extended height limit for taller babies

What to Look for in an Infant Car Seat for Bigger Babies

1. Higher weight/height limits - When you are looking for a car seat for big babies, you want to make sure that the seat goes up to 35 pounds and 32 inches. This is if you are looking for an infant car seat. 

2. Make sure it is roomy - When looking at different models, I noticed that some car seats are more slim on the sides which is not ideal for a big kid. Make sure to look for a car seat that has more room on the sides and is not so snug. 

3. Adjustable headrest and harness - I also ran into finding car seats that I love, but my baby would grow out of it too fast. Having an adjustable headrest made the car seat last so much longer for my kids. I also noticed if they are too tall, they need the adjustable harness too. 

4. Lightweight - If you are getting an infant seat that you are going to be lugging around, the best thing you can do is get one that is lightweight. This way you don’t need to be lugging around your entire big baby and their heavy car seat. The added weight really adds up when you are carrying it. 

How to Choose the Best Car Seat 

Car Seat Types 

Forward Facing Car Seats Children over 2 years old or who are too big for their car seats height and weight limits can use forward-facing car seats. The forward facing seats can hold your baby usually up to 65 lbs depending on the car seat. These types of seats are important to be able to safely distribute crash force in the case of an accident. 

Rear-facing Car Seat These car seats can normally hold your baby from birth to 2-4 depending on their height and weight for the car seat. Rear facing is the safest position for your baby because it supports their head and spine in the case of an accident. You can find infant car seats and convertible car seats that both support rear-facing, 

Booster Children who are 4-12 years old or who weigh more than 40lbs and who are not tall enough for a seat belt to fit correctly, should wear a booster seat. Most booster seats can fit children up to 120 lbs. Booster seats are important to make sure your child is safe and protected in the case of an accident. 

Using the Chicco Guide  

Use this guide below to see the difference in car seats and find out which one is the best for you. Chicco is a really reliable and trustworthy brand. They have made car seats for years and years. I would recommend getting a Chicco car seat.

When and how to use the different kinds of car seats

1. Your baby is safest in a rear facing car seat. You should keep them in that position until they have reached the car seats height or weight limit.

2. After they have exceeded the limit, you should move your baby to a forward facing position. 

3. You should be using a booster seat until your child can sit with their seat belt properly aligned without needing that additional support.




When you are looking for a car seat, you want to consider these factors. 

1. What type of car seat do you want? (all-in-one, infant seat, 360, etc)

2. How long can my child fit in the car seat while it is in the rear-facing position? 

3. Does the car seat have easy installation? And what is the installation process? Is it right for YOUR car?? 

4. Do you need to tether the seatbelt every time you put your baby in the car?

5. Can your car seat transition to booster mode? 

6. What are the safety features of the car seat?

When picking out a car seat for big babies, consider these factors: 

1. Leg room 

2. Belt-positioning 

3. Recline options 

4. Weight limit and height limit

5. Ease of use

 

Picking the right car seat is really important for you and your family. Hopefully this guide has given you a little more information to steer you in the right direction so you can get the right seat for your baby. Make sure when you are getting a new seat you know the weight requirements beforehand so you get the best seat for your baby. 

These are all of my top recommendations for the best car seats for big babies.