Best Convertible Child Safety Booster Car Seats in 2026

3-in-1 car seat grows with your child from rear-facing harness (5-40 pounds) to forward-facing harness (22-65 pounds) to highback booster (40-100 pounds)

Slim design with dual integrated cup holders that rotate away, making the seat 10% slimmer to save valuable back seat space

Graco ProtectPlus Engineered: A combination of the most rigorous crash tests that helps to protect your little one in frontal, side, rear and rollover crashes

5-POINT HARNESS SECURITY: Two position points at each shoulder, two position points at the child's hips, and one point where the harness buckles between the legs to give your child the best possible protection

3 HARNESS POSITIONS: There are three slots to position the harness shoulder straps depending on the age and height of your child. Shoulder straps should be at or just above the shoulders whenever using a forward-facing car seat

TWO MODE OPTIONS: This forward-facing five-point harness car seat is made for children weighing between 22 and 65 pounds and 29 to 49 inches in height. Converts to a belt-positioning booster seat for older children weighing between 40 and 100 pounds and 38 to 57 inches in height. We recommend using the 5-point harness to the maximum recommended weight and height before using this car seat as a belt-positioning booster

3-in-1 harness booster helps protect your child, from toddler to youth

Grows with your child from forward-facing harness (22-65 pounds) to highback booster (40-100 pounds) to backless booster (40-100 pounds) to continue to meet industry standards, we have increased the weight minimum from 30 to 40 pounds

No-rethread simply safe adjust harness system allows the headrest and harness to adjust together in one motion.Do not use bleach

Built to grow with your child, this safety 1st car seat supports infants from 5 pounds to toddlers of 40 pounds as a rear facing car seat, 22 to 65 pounds forward facing toddler car seat, and 40 to 100 pounds as a belt positioning booster

An adjustable 3 position recline makes it easy to get a good fit for the seat in your car, assembled product dimensions 24.00 inches x 19.00 inches x 23.75 inches

Harness holders keep the harness open, making it easier to get into and out of the seat; Front seat passengers can enjoy up to 7 inches more legroom with the rear facing infant seat's reduced footprint

BUILT TO GROW — For extended use, the forward-facing Chicco MyFit harness + booster car seat easily converts from 5-point harness for toddlers to belt-positioning booster for bigger kids.

HEAD AND TORSO PROTECTION — Superior DuoGuard with a deep rigid shell and EPS energy-absorbing foam for head and body support creates two levels of side-impact protection. A steel-reinforced frame provides additional impact protection for parent peace of mind.

EASY TO INSTALL — Premium LATCH connectors and LockSure belt-tightening system offer easy installation in either harness or seat belt mode while RideRight bubble levels and ReclineSure leveling system ensure a proper fit in the vehicle.

4 seats in 1: 4-in-1 seat gives you 10 years of use--it seamlessly transforms from rear-facing harness (5-40 lb), to forward-facing harness (22-65 lb), to highback booster (40-100 lb), to backless booster (40-110 lb).

Simply Safe Adjust Harness System: Adjust the height of your harness and headrest to 10 positions in one motion to ensure that your child is always properly secured.

10-position Headrest: One-hand, 10-position adjustable headrest is easy to use and grows to properly fit your growing child.

BOOSTER CAR SEAT FOR 40 LBS AND UP – GoFit Plus is designed for children who are at least 4 years old, between 40-110 lbs. and 38-57 inches tall and who can sit relatively still in the same seated position throughout the car ride.

GRAB & GO CONVENIENCE — The GoFit Plus backless booster is equipped with LATCH to help stabilize the seat while the child gets in and out. An innovative quick-release design means one-hand removal with a simple pull of the release handle.

CONTOURED SEAT — The ErgoBoost contoured seat with double foam padding provides support in all the right places for big kid comfort. A built-in carry handle makes it easy to transfer the child booster seat from vehicle to vehicle.

This 2-In-1 combination booster car seat fitting children from 22-110 pounds. converts from a 5-point harnessed to belt-positioning car seat allowing for extended use for your child

Upfront Harness Adjust: Central, front access to harness adjuster provides an easy way to adjust child's harness for an accurate, snug fit

This lightweight combination booster car seat comes equipped for latch systems allowing for easy installation and transfer between multiple vehicles. Do not use abrasive cleaners or solvents.

Helps safely transport your big kid from 40-100 lb and 43-57" tall

Boosts your child up to provide a proper fit with the vehicle seat belt

Front-adjust LATCH system allows you to quickly and easily secure the booster to the vehicle seat

Quick-release LATCH system

Built-in carry handle

Contoured ErgoBoost seat with double-foam padding

HEAD AND TORSO PROTECTION – Superior DuoGuard for head and body support and 10-position height adjustment from the waist instead of the neck offer reassuring protection and child comfort.

GRAB & GO CONVENIENCE – Equipped with premium LATCH connectors and a SuperCinch one-pull tightener to stabilize the seat and the quick-release LATCH provides one-hand removal for easy transfer creating an ideal portable booster seat.

NO ADDED CHEMICALS – ClearTex fabric features no added chemicals and meets federal flammability standards. All fabrics, including arm rests, are removable and machine washable.

BOLD MOVES: Innovative rotating car seat makes it easier than ever to get your child in and out of the car—no matter what kind of vehicle you have

GROW WITH GOLD: Offers 10 years of use and 3 modes—Rear Facing (4 – 40 lb), Forward Facing (22 – 65 lb), and Booster (40 – 120 lb)

ACE THE INSTALL: Bead Level Indicator makes it easy to level the Revolve360 to achieve the safest, most accurate installation in all vehicle types

BUILT TO GROW — Use as a rear-facing (5-40 lbs.) or forward-facing (22-65 lbs.) car seat with 9-position ReclineSureTM leveling system, easy-adjust headrest and padded no-rethread 5-point harness to accommodate infant, toddler and beyond.

EASY TO INSTALL — Designed for secure install with remarkably simple leveling and tightening. A SuperCinch force-multiplying tightener and LockSure belt-locking system make it easy to achieve a tight fit with LATCH or with the vehicle seat belt.

ADDED FEATURES — Includes dishwasher-safe, space-saving CupFolder, soft, zip-off, machine-washable fabrics for comfort and convenience and removable newborn positioner for use from day one.

10 Years of Use: One4Life convertible to booster car seat grows with your child from 5 – 120 lbs and up to 63” tall

Install Confidently: With ClickTight Installation, you’ll know it’s right in 3 easy steps: Open, thread & buckle, click it closed.

One4Life: Converts from a rear-facing infant car seat, to a forward-facing 5-point harness, to a high-back belt-positioning booster

Designed to help protect your rear facing child from 5 40 pounds and your forward facing child from 22 65 pounds

Simply Safe Adjust Harness System adjusts the harness and headrest height together with one easy motion no re threading required

Graco ProtectPlus Engineered: a combination of the most rigorous crash tests that helps to protect your child in frontal, side, rear & rollover crashes; additional testing based on the New Car Assessment Program and for extreme car interior temperatures

2-in-1: The skyline belt positioning high back booster car seat easily coverts to a backless booster to keep your child safer, longer

Fit: 40 to 120 pounds and up to 63 inch height

Big kid comfort: Plush, foam padding and built in arm rests

PROTECT WITH EXTENDED TIME REAR-FACING: Allows you to keep your child rear-facing for longer as recommended by child safety experts — all the way up to 50 lb.

GET IN AND OUT EFFORTLESSLY: 360° rotation makes it a breeze to get your child in and out of the car with just one hand — an award-winning innovation that keeps on giving!

GROW UP WITH IT: Grows with your child for 10 years with 3 modes that adapt to every stage — rear-facing (4 to 50 lb), forward-facing (22 to 65 lb) and booster (40 to 120 lb)

Trusted quality, upgraded design: Looking for frontier. Grow with you ClickTight is our newest harness to booster car seat

Install confidently: With a ClickTight, you know it’s right in just 3 easy steps. Open, thread & buckle, close. Shoulder width: 12 inch

2 in 1 booster seat: Easily transitions from forward facing harness mode to belt positioning booster mode as your child grows from toddler to big kid

BUILT FOR COMFORT - XL ultra-wide design and optimized comfort with ergonomic, contoured base finished with deep padded cushioning

2 SEATS IN 1 - Cambria 2 easily converts from a high-back booster to a backless belt-positioning booster seat

EASY ADJUST HEADREST - Includes a 6-position headrest to provide protective head support for your child with reinforced side impact protection

3-in-1 car seat grows with your child from rear-facing harness (5-40 lb) to forward-facing harness (22-65 lb) to highback booster (40-100 lb)

Graco ProtectPlus Engineered: a combination of the most rigorous crash tests that help to protect your child in frontal, side, rear & rollover crashes

No-Rethread Simply Safe Adjust Harness System allows the headrest and harness to adjust together in one motion

REAR-FACING FOR LONGER - Designed and engineered to keep your child rear facing even longer up to 50 lb / 22.7 kg, approx. 4 years old

10 YEARS ONE CAR SEAT - With 4 ways to travel from birth to booster, the Radian 3R adapts as your child grows to offer a custom fit from birth up to 120 lb / 54 kg

STEEL CORE - Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect

BOLD MOVES: Innovative rotating car seat makes it easier than ever to get your child in and out of the car—no matter what kind of vehicle you have

360 DEGREES OF EASE: Install the Revolve360 once and you’re done—the Sure360 Safety Installation System with LockStrong and Tether360 keeps it safe, secure and simple

GROW WITH GOLD: Offers 10 years of use and 3 modes—Rear Facing (4 – 40 lb), Forward Facing (22 – 65 lb), and Booster (40 – 120 lb)

BELT-POSITIONING BOOSTERS - Suitable from 40 - 120 lb (18 - 54 kg) or up to 63 in (160 cm) tall

COMFORTABLE & CONVENIENT - Ergonomic seat base for big kid comfort and lightweight design to move between vehicles with ease

EASY REMOVE COVERS - Machine washable covers for easy cleaning

2-in-1 BOOSTER SEAT: For big kids 40-120 lb, it transforms from highback to backless booster, because growing up happens

HAPPY PLANET COLLECTION: Fabrics made with recycled materials as part of our Do More promise to Recycle, Reimagine, and Give Back

SLIM AND LIGHTWEIGHT DESIGN: This space savior is easy to move from car to car

THE ORIGINAL EXPANDABLE BOOSTER - Provides 69% increase in occupancy space as your child grows

2 SEATS IN 1 - Easily converts into a backless booster seat, with a wide contoured seat base and two retractable cup holders

SUPERIOR SIDE IMPACT PROTECTION - Reinforced high impact aluminum that provides layers of enhanced side impact protection for head, shoulders and torso

Safety Fit for a Big Kid: Higher weight and height capacity than most other brands; 10-position headrest is quick and easy to adjust as they grow

Washer and Dryer Friendly: No more hand washing or waiting for the cover to air-dry. Just quick and easy cleanup, so you can keep moving

No Added FR Chemicals: Naturally flame-retardant fabrics with no added FR chemicals

3-in-1 car seat grows with your child from rear-facing harness (4-50 lb) to forward-facing harness (22-65 lb) to highback booster (40-100 lb)

Anti-Rebound Bar provides an additional layer of rear-facing safety by limiting rotation of the seat and your child in the event of an impact

Extend2Fit 4-position adjustable extension panel provides up to 5" additional legroom, allowing your child to safely ride rear-facing longer

FOR ALL THE STAGES – From rear-facing harness (5-40 lbs.) to forward-facing harness (25-65 lbs.) to booster (40-100 lbs.), one car seat fits your child, vehicle and life. Includes a removable infant head and body support insert for newborns.

ROOM TO GROW – This convertible car seat boasts extra legroom and the widest range of headrest height adjustment. DuoGuard offers two layers of protection with a steel-reinforced frame and EPS energy-absorbing foam to surround head and torso.

NO ADDED CHEMICALS – ClearTex features no added chemicals and is GREENGUARD Gold Certified for low chemical emissions, contributing to healthier air quality around baby.

3-in-1 harness booster helps protect your child, from toddler to youth

Grows with your child from forward-facing harness (22-65 lb) to highback booster (40-100 lb) to backless booster (40-100 lb)

No-Rethread Simply Safe Adjust Harness System allows the headrest and harness to adjust together in one motion

10 YEARS OF USE: The only car seat you’ll need, the EveryFit is a rear-facing harness infant car seat, forward-facing harness car seat, high-back booster, and no-back booster seat.

SAFETY IS A PRIORITY: Meets or exceeds all applicable federal safety standards and Evenflo’s side impact standard. It is tested at energy levels approximately 2X the federal crash test standard.Care & Cleaning: Spot or Wipe Clean

EASY INSTALLATION: The SureSafe Installation System includes easy to use connectors and a set of LATCH guides– which improves proper installation by 2X (compared to standard LATCH installations).