6 Best Car Seat For 3 Year Old In 2021

There are some risks associated with driving. Safety equipment (such as seat belts) is designed to protect you while driving. However, children are neither the size nor the weight necessary to use this safety feature on their own. That is why you will need to find the best car seat. Different ages and stages of development require unique protection and that’s why 3 year old requires a forward-facing car seat.

When they get a little older and taller, you can move them to a booster seat. The size requirements for each type. Only when your child has reached these milestones can they switch to a booster. You want something with a secure harness, a solid back, and adequate padding. To help you find the best car seats for 3 year old of 2021, we’ve compiled a list of the top options along with some tips on how to find the right fit.

Top 6 Recommended Car Seats For 3-Year-Old

1) Graco Tranzitions 3 In 1 Harness Booster Seat

Graco Tranzitions 3 In 1 Harness Booster Seat

When you want a good solution to keep your child safe on the road, the GRACO Tranzitions Harness Booster booster seat is the safest & recommended car seat for 3 year old. It has an effective harness with three attachment points. It is easy to adjust and has reliable fastening clips. It comes with enough padding, particularly around the head. With small armrests, it provides good support for the child’s arms.

 Since the headrest is critical to the functioning of the safety features, it helps that there are eight different settings. Comfort features, it has two cup holders built into the structure to allow you to easily carry drinks with your child. Weighing up to 65 pounds, you can switch to a booster when your child reaches 40 pounds. Please note that although this Seat is really useful and protective, it can be tricky in terms of maintenance, however as long as you clean it regularly it should be fine for quite some time.


  • Dimensions: 18.9 x 10.47 x 33.5 inches.
  • 2 easy-to-clean cup holders to keep your child’s drinks and snacks close.
  • Open-loop belt guides to help to position the seat belt.
  • The seat pad, body support, and harness covers are comfortable.
  • Machine washable.

Pros & Cons

  • 3 car seats for the price of 1.
  • Lightweight.
  • Affordable.
  • Easily convertible between each of the three different seating modes.
  • Machine washable seat pad, harness covers, and cushions.
  • No push-on connectors.
  • No integrated harness or manual storage.
  • Difficulties with getting a secure installation.

2) Chase Harnessed Booster

Chase Harnessed Booster

The Chase Harnessed Booster is the recommended car seat for 3 year old who want to save without compromising the quality. You can use it as a booster seat or a full-back car seats for 3 year old, depending on the weight and height of the child. older, it can hold up to 110 pounds. It comes with a strong harness, using five attachment points for the child. When configured with a full back, there is substantial protection for the head. You can adjust the height. to ensure that force relative to the ears is a good choice. It is relatively easy to install. Also, since this type of car seat is designed to stay in one position, it has fairly low maintenance demands.

 Keep in mind that while this seat is cost-effective, the cleaning process can be a bit tedious. You have to remove the cover, the machine washes it, and then put it back on the seat.


  • Weight: 11 Pounds.
  • Dimensions: 18 x 18.5 x 29.5 inches.
  • 2 Seats in 1 i.e. Forward-facing to Belt-Positioning.
  • It has a Removable Head Pillow.
  • It has dual Cup Holders.
  • It has 2 buckle Positions to adjust for more seating space as the child grows.

Pros & Cons

  • Easy install.
  • Affordable low price (most reasonable on the market).
  • Large weight range.
  • Lightweight.
  • Highly durable.
  • Comfortable.

  • Do not recline.
  • Light padding/Not very plush.
  • The latch can stick.
  • No rear-facing capability.

3) Evenflo Maestro Sports Harness Car Seat

Evenflo Maestro Sports Harness Car Seat

Want to stick to the basics and proven designs that you know will work? Try the EvenFlo Maestro Sports Harness Car Seat. The material is soft on the skin and also resistant to fraying and broken seams. In terms of safety, this seat has a harness that is quite easy to adjust which makes it the safest car seat for 3 year old. Provides reliable protection against impacts. The five points ensure that the force is distributed evenly, preventing the child from feeling the impact. For added convenience, it includes two cup holders. While they are large enough to handle most containers, these cup holders don’t take up much space. More than one can fit in the back seat. Also, when the child grows, you can turn it into a booster seat for 3 year old.

 Keep in mind that despite the rugged design and high level of protection, it doesn’t have a lot of padding. Depending on the child, problems with comfort can arise on longer hikes.


  • Weight: 9.60 lbs.
  • Dimensions: 19 x 17 x 27.5 inches.
  • Forward-facing Harness to Belt-Positioning Booster which supports children 22-110 lbs.
  • The 5-Point harness holds the child’s body securely.
  • Successful side Impact Testing.

Pros & Cons

  • Cupholders.
  • Lightweight for travel.
  • FAA approved in harness mode.
  • Easy care cover.
  • Budget-friendly.
  • Red tether to promote tether usage.

  • Must disassemble the seat to clean the pad.
  • The harness must be re-threaded to change the height.
  • Difficult strap adjustment.
  • Low-quality fabric.

4) Graco Affix Highback Booster Seat with Latch System

Graco Affix Highback Booster Seat with Latch System

The Graco Affix Highback Booster Seat promotes an innovative design The peripheral protective measures start at the headrest and do not impair the view. They don’t offer much side protection, however. You can easily adjust them to the correct height, and thanks to the different sides you can easily find the correct setting. Once your 3 year old hits 30 pounds, he or she is ready to use this car seat. The well-padded shoulders and the significant side protection allow the child to look forward without risk. For additional comfort, two cup holders (different sizes) are included on each side. They are small enough not to take up too much space in the back seat. With tough and absorbent foam, this is the safest car seat for 3 year old, available in the market.

Although the seat fabric is very effective, it can tear. Due to the multiple layers of padding, it can wear out with continued use.


  • Weight: 9.80 lbs.
  • Dimensions: 15.5 x 16.5 x 26.75 inches.
  • Front-adjust Latch system secures booster to the vehicle seat.
  • Self-buckling for your independent child.
  • Multi-layer headrest for security.
  • Full coverage back supports as your child grows.

Pros & Cons

  • It has energy-absorbing foam.
  • The Latch System ensures more stability.
  • Easy to set up.
  • Has adjustable parts for more comfort.
  • Includes detachable back support.
  • Machine washable cover.
  • A cup holder.
  • Available in four colors.

  • Latch straps get loosen after some time.
  • The headrest slips when in the uppermost position.
  • Armrests are not adjustable.

5) Cosco Finale Booster Car Seat

Cosco Finale Booster Car Seat

The Cosco Finale Booster is the recommended car seat for those who are looking for a car seat that is easy to use and install? If you need a Booster Car seat for 3 year old then the Cosco Finale Booster car seat is worth a look. You can get it in one of four colors, each with a sleek design. The back should have a supportive effect and at the same time prevent discomfort on long journeys. It has received good marks from the relevant safety authorities, making it the safest car seat for 3 year old on all types of roads. The relatively compact structure allows you to place up to three seats in most vehicles. With a smooth fabric removable cup holder for convenience and convenience, it’s a popular seat. This option is easy to maintain and can be converted into a child seat in due course. This option deserves this honorable mention.

It’s worth noting that while the seat is small enough to fit multiple boosters in the back, this gives the child a little less leeway while driving.


  • Weight: 11.5 Pounds.
  • Dimensions: 18.25 x 19 x 29.75 inches.
  • Forward-facing with a harness.
  • Designed to fit in most vehicles.
  • Lightweight and easy to move from car to car.
  • Deluxe fabric gives kids a comfy ride.

Pros & Cons

  • Light and compact.
  • Quickly installs.
  • Narrow design.
  • Easy to adjust.

  • Requires the use of a top tether anchor.
  • Inferior quality material.

6) Britax Marathon Convertible Car Seat

Britax Marathon Convertible Car Seat

Look for a car seat for your 3 year old fits and eventually works for his younger one? Consider the Convertible Car Seat is a good option. It works both as a rear-facing and a forward-facing option. It comes in many different colors and patterns. Each has multiple layers of protection to ensure the child’s safety. The main seat is fixed to the base. , which stays in the car. Forward-facing for 3-year-olds has a solid harness for added comfort. Works for kids up to 65 pounds, making it a really useful option for this age group. The mainframe is made of steel, which adds durability in case of impact. It reclines in seven different settings, allowing you to optimize comfort for your child.

Please note that this seat does not convert into a booster car seat for 3 year old. It is aimed only at younger children, from infants to 3 year olds.


  • Weight: 27.00 lbs.
  • Dimensions: 23 x 18.5 x 23.5 inches.
  • It comes with 7 recline angles.
  • It has an automatic level indicator.
  • It features the ClickTight Installation system.
  • It weighs the least compared to all.
  • It’s very easy to install/uninstall.
  • The Marathon is outfitted in a machine-washable cover.

Pros & Cons

  • Super easy to install.
  • Very safe for your child.
  • The comfortable car seat.

  • There’s not enough padding.
  • When it’s in the rear-facing position, it’s pretty bulky.

What types of Car Seats is Available For 3-Year-Olds?

Forward Facing – A forward-facing car seat is designed for children younger than 3 years old and those who weigh less. There is a backrest as well as a neck support. You can adjust the height of the headrest to optimize safety. It must be near to the ear height. When your child weighs at least 20 pounds, you can use a car seat. Upon reaching the 60-pound mark, the child will not require the five-point harness or the back support and can move to the other type.

Booster Seat Many car seats can be converted to a booster seat after you are done using them as a forward-facing model. Designed for when children weigh between 60 and 65 pounds, these seats are just a base and armrests. Some have a high back, however, and these are great for comfort. Booster seats rely on your vehicle’s seat belt system to restrain the 3-year-old.


Now that you are familiar with the nuances of 3-year-old child safety seats, you can choose the Graco Tranzitions Harness Booster Seat or the affordable Chase Harness Booster Seat. There is an option for everyone. Do you have any experience with car seats? Share your story in the comments below. Happy driving!

Leave a Comment