Top 2 Best Carseats That Fit 3 Across

of May 2024
1
Best ChoiceBest Choice
Cosco Finale Dx 2-In-1 Combination Booster Car Seat, Sport Blue, 1 Count (Pack of 1)
Cosco
Cosco

10
Exceptional
Checkmark
View on Amazon
2
Best ValueBest Value
Safety 1st Grand 2-in-1 Booster Car Seat, Forward-Facing with Harness, 30-65 pounds and Belt-Positioning Booster, 40-120 pounds, Black Sparrow
Safety 1st
Safety 1st

9.9
Exceptional
Checkmark
View on Amazon
3
hiccapop UberBoost Inflatable Booster Car Seat | Blow up Narrow Backless Booster Car Seat for Travel | Portable Booster Seat for Toddlers, Kids, Child | Black/Gray
hiccapop
hiccapop

9.8
Exceptional
Checkmark
View on Amazon
4
Cosco Mighty Fit 65 DX Convertible Car Seat (Heather Onyx Gray)
Cosco
Cosco

9.7
Exceptional
Checkmark
View on Amazon
5
Safety 1st Boost-and-Go All-in-1 Harness Booster car seat, 3-in-1 Booster for Extended use: Forward-Facing Harness, high-Back Belt-Positioning Booster and Backless Booster, Dunes Edge
Safety 1st
Safety 1st

9.6
Exceptional
Checkmark
View on Amazon
6
Cosco Kids MightyFit LX Convertible Car Seat, Canyon
Cosco
Cosco

9.5
Excellent
Checkmark
View on Amazon
7
Safety 1st TriMate All-in-One Convertible Car Seat, All-in-one Convertible with Rear-Facing, Forward-Facing, and Belt-Positioning Booster, Dunes Edge
Safety 1st
Safety 1st

9.4
Excellent
Checkmark
View on Amazon
8
Safety 1st Jive 2-in-1 Convertible Car Seat, Rear-facing 5-40 pounds and Forward-facing 22-65 pounds, Harvest Moon
Safety 1st
Safety 1st

9.3
Excellent
Checkmark
View on Amazon
9
Safety 1st Everslim DLX Slim Convertible Car Seat A 4-in-1 Convertible Child Safety Car Seats; Baby Car Seats for 5-100 lbs, Dunes Edge
Safety 1st
Safety 1st

9.2
Excellent
Checkmark
View on Amazon
10
Safety 1st Guide 65 Convertible Car Seat, Chambers, Black
Safety 1st
Safety 1st

9.1
Excellent
Checkmark
View on Amazon
11
Disney Baby Jive 2 in 1 Convertible Car Seat, an Extra-Comfortable Ride That Lasts for Years: Rear-Facing 5-40 pounds and Forward-Facing 22-65 pounds, Minnie Dot Party
Disney
Disney

9.0
Excellent
Checkmark
View on Amazon
12
Cosco Empire All-in-One Convertible Car Seat, Moxy
Cosco
Cosco

8.9
Very Good
Checkmark
View on Amazon
13
Safety 1st Getaway All-in-One Convertible Car Seat, Haze
Safety 1st
Safety 1st

8.8
Very Good
Checkmark
View on Amazon
14
Maxi-Cosi Pria 3-in-1 Convertible Car Seat, Peach Amber
Maxi-Cosi
Maxi-Cosi

8.7
Very Good
Checkmark
View on Amazon
15
Cosco Onlook 2-in-1 Convertible Car Seat, Rear-Facing 5-40 pounds and Forward-Facing 22-40 pounds and up to 43 inches, Black Arrows
Cosco
Cosco

8.6
Very Good
Checkmark
View on Amazon
16
Disney Baby Onlook 2-in-1 Convertible Car Seat, Rear-Facing 5-40 pounds and Forward-Facing 22-40 pounds and up to 43 inches, Mouseketeer Minnie
Disney
Disney

8.5
Good
Checkmark
View on Amazon
17
Safety 1st Grow and Go All-in-One Convertible Car Seat, Evening Dusk
Safety 1st
Safety 1st

8.4
Good
Checkmark
View on Amazon
18
Disney Baby Disney MagicSquad 3-in-1 Harnessed Booster Car Seat, Minnie Dot Party
Disney Baby
Disney Baby

8.3
Good
Checkmark
View on Amazon
19
Safety 1st Crosstown All-in-One Convertible Car Seat, Rear-Facing 5-40 pounds, Forward-Facing 22-65 pounds, and Belt-Positioning Booster 40-100 pounds, Seal
Safety 1st
Safety 1st

8.2
Good
Checkmark
View on Amazon
20
Disney Baby Grow and Go All-in-One Convertible Car Seat, Rear-facing 5-40 pounds, Forward-facing 22-65 pounds, and Belt-positioning booster 40-100 pounds, Simply Mickey
Disney
Disney

8.1
Good
Checkmark
View on Amazon
21
Maxi-Cosi Rodi Sport Booster Car Seat, Midnight Black
Maxi-Cosi
Maxi-Cosi

8.0
Good
Checkmark
View on Amazon
22
Cosco Topside Booster Car Seat, Extra-Plush pad, Organic Waves
Cosco
Cosco

7.9
Good
Checkmark
View on Amazon
23
Graco Slimfit (Slimfit w/ 3-Across Fit, Katrina)
Graco
Graco

7.8
Good
Checkmark
View on Amazon
24
Cosco Rise Backless Booster Car Seat, Ripple
Cosco
Cosco

7.7
Good
Checkmark
View on Amazon
25
Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black
Diono
Diono

7.6
Good
Checkmark
View on Amazon
26
Baby Trend Trooper 3-in-1 Convertible Car Seat, Dash Black
Baby Trend
Baby Trend

7.5
Good
Checkmark
View on Amazon
27
Graco TurboBooster 2.0 Highback Booster Car Seat, Declan
Graco
Graco

7.4
Good
Checkmark
View on Amazon

About Carseats That Fit 3 Across

Click here to learn more about these products.

Cosco Finale Dx 2-In-1 Combination Booster Car Seat, Sport Blue, 1 Count (Pack of 1)

Extended Use Forward-facing with harness 30-65 pounds and Belt-positioning Booster 40-100 pounds. Designed to fit 3 across in most vehicles - Great for growing families and car pools. Lightweight and easy to move from car to car. Deluxe fabric gives kids a comfy ride. Dishwasher-safe cup holder detaches for use on either side of seat. IIHS Best Bet rating for use in booster mode. Made in USA with American and imported parts.

Safety 1st Grand 2-in-1 Booster Car Seat, Forward-Facing with Harness, 30-65 pounds and Belt-Positioning Booster, 40-120 pounds, Black Sparrow

Extended Use forward-facing with harness, 30-65 pounds and Belt-positioning Booster, 40-120 pounds. Designed to fit 3 ACROSS in most vehicles - Great for growing families and car pools. Lightweight and easy to move from car to car. Deluxe fabric gives kids a comfy ride. Adjustable headrest allows for customizable support.

hiccapop UberBoost Inflatable Booster Car Seat | Blow up Narrow Backless Booster Car Seat for Travel | Portable Booster Seat for Toddlers, Kids, Child | Black/Gray

PORTABLE AND PACKABLE Car seats no longer have to be heavy, bulky and impractical. The hiccapop UberBoost portable car seat inflates with only a few breaths takes less than 20 seconds, and installs easily and quickly. Deflates and rolls up tightly in its own travel bag for compact fit in suitcases, carry-ons, large purse or backpack.. CERTIFIED SAFE FOR YOUR MOST PRECIOUS CARGO Your child deserves a comfortable and safe car seat for those quick journeys in rental cars, taxis, Uber rides, on school trips or in car pools. Meets or exceeds all federal standards for car seat safety FMVSS213 Federal Motor Safety Standard for USA.. STURDY, STABLE, SECURE Non-skid base is designed to sit firm and steady on leather, vinyl or cloth seats. Provides soothing stability while riding and limits movement in case of an accident. Gentle on your upholstery.. PRACTICAL DIMENSIONS Narrow yet roomy design allows you to fit 3 UberBoost inflatable car seats across the back seat of smaller vehicles, or fit 1 in between 2 traditional car seats. Perfectly accommodates large families, car poolers and busy soccer moms. SECURITY AND COMFORT Buoyant and extra comfy for small bottoms. Your little one will love the ultra cushiony design Positioning clips ensure that childs belt fits properly and comfortably across the lap rather than dangerously digging into the stomach, preventing internal damage in the event of an accident..

Cosco Mighty Fit 65 DX Convertible Car Seat (Heather Onyx Gray)

With 2 modes of use, this extra comfortable LATCH equipped Cosco car seat accommodates infants from 5 pounds up to toddlers weighing 40 pounds in rear facing mode and kids up to 65 pounds in forward facing mode. Its compact design also makes it easier to manage through airport security checks. The 5 point harness adjusts easily from the front of the seat and features 5 heights and 3 buckle locations. Fits 3 across in the back seat of most vehicles. Built in side impact protection keeps your little 1 extra secure Designed to be just the right size, the seat takes up less space while rear facing so parents can have more leg room. Three of these seats can fit side by side in the back seat of most cars, perfect for growing families. With plush padding and premium fabric, this seat gives your child an extra comfy ride Easy to clean, the fabric car seat cover is machine washable and dryer safe. This car seat meets or exceeds federal, ASTM, and JPMA safety standards and includes a 1 year limited warranty. For more than 70 years, Cosco has been a leading childrens products brand recognized for its dedication to safety and value From bouncers to car seats, swings to strollers, and high chairs to play yards, Cosco's essential baby products feature solid value and smart design.

Safety 1st Boost-and-Go All-in-1 Harness Booster car seat, 3-in-1 Booster for Extended use: Forward-Facing Harness, high-Back Belt-Positioning Booster and Backless Booster, Dunes Edge

GROWS WITH YOUR CHILD The Boost-and-Go 3-in-1 Harness Booster grows with your child for extended use, from forward-facing harness mode 3065 lbs. to high-back belt-positioning booster and backless modes 40100 lbs... EASILY ADJUSTABLE HEADREST With one hand, parents can easily adjust the Boost-and-Gos headrest to seven different positions that grow with your child.. DISHWASHER-SAFE CUPHOLDERS Kids will love having their own cupholders and parents will love that the cupholders are removable and dishwasher safe.. FITS 3 ACROSS IN STANDARD BACK SEATS The Boost-and-Gos narrow design allows parents to comfortably fit more in the back seat without sacrificing comfort. The seat is also lightweight and portable for parents on the go.. EASILY CLEAN UP SPILLS AND MESSES The removable seat cover is machine washable and dryer safe for easy cleanup.. 3 DIFFERENT MODES WITH EASY TRANSITIONS Easily converts from harness mode to belt-positioning and backless modes with one simple motion..

Cosco Kids MightyFit LX Convertible Car Seat, Canyon

An extra-comfortable ride that lasts for years Rear-facing 5-40 pounds and Forward-facing 22-65 pounds. Fits 3 across in the back seat of most vehicles. Side Impact Protection. 5-point harness with easy up-front adjustment.

Safety 1st TriMate All-in-One Convertible Car Seat, All-in-one Convertible with Rear-Facing, Forward-Facing, and Belt-Positioning Booster, Dunes Edge

3 MODES TRANSITION FROM BABY TO BIG KID Three modes of use accommodate children from birth to age 10 rear-facing 540 lbs. and 1940, forward-facing 2265 lbs. and 2249, and belt-positioning booster 40100 lbs. and 4352.. FITS 3 ACROSS THE BACK SEAT The TriMate All-in-One Convertible Car Seats ultra-slim design just 17 across without the cup holders allows parents to fit three across the back seat without sacrificing comfort.. CLEAR, SIMPLE INSTALLATION AND ADJUSTMENT TriMate All-in-One features a 9-position headrest that adjusts quickly with just one hand, a hassle-free harness system that adjusts without complicated re-threading, and visible belt paths for easy installation.. KEEPS LITTLE ONES COZY Soft, memory-foam infant insert keeps small babies comfortable and secure..

Safety 1st Jive 2-in-1 Convertible Car Seat, Rear-facing 5-40 pounds and Forward-facing 22-65 pounds, Harvest Moon

Safety 1st Jive 2-in-1 Car Seat. Rear-facing 5-40 pounds and 19-40 in. Forward Facing 22-65lbs and 29-49 in. Fits 3 across in the back seat of most vehicles.

Safety 1st Everslim DLX Slim Convertible Car Seat A 4-in-1 Convertible Child Safety Car Seats; Baby Car Seats for 5-100 lbs, Dunes Edge

GROW WITH ME CAR SEAT Adaptable as a car seat for toddlers to 10 years starting at 5 pounds, this all-in-one car seat caters to newborns with rear-facing mode while also functioning as a toddler car seat in forward-facing mode. 4 modes of use fit children birth to age 10 rear-facing 540 lbs., 1940, forward-facing 2265 lbs., 2949, belt-positioning booster and backless booster 40100 lbs., 4352. Converts to backless booster with one hand.. NEWBORN, TODDLER, AND BEYOND The Safety 1st Everslim DLX is a versatile car seat for toddlers as well as a newborn car seat. It eases the transition of your child's growth phases from baby carseat to toddler carseat, to up to 10 years old.. FITS 3 ACROSS As a slim car seat, it can fit up to 3 across a back seat, making it an ideal travel car seat for toddlers.. USER-FRIENDLY FEATURES This convertible car seat is equipped with a SecureTech chest clip, which visually shows parents if the chest clip is buckled or not.. EASE OF ADJUSTMENT AND CLEANING Offering adjustable comfort for car seats newborn to toddler, the convertible carseat features a 5-position base and a 10-position headrest. The fabric of this carseat is removable and machine-washable, designed for the cleaning convenience of a travel carseat..

Safety 1st Guide 65 Convertible Car Seat, Chambers, Black

2 modes of use Rear-facing 5-40 pounds and Forward-facing 22-65 pounds. Fits 3 across in the back seat of most vehicles. Side Impact Protection. 5-point harness with up-front adjustment.

Disney Baby Jive 2 in 1 Convertible Car Seat, an Extra-Comfortable Ride That Lasts for Years: Rear-Facing 5-40 pounds and Forward-Facing 22-65 pounds, Minnie Dot Party

An extra-comfortable ride that lasts for years Rear-facing 5-40 pounds and Forward-facing 22-65 pounds. Side Impact Protection. Fits 3 across in the back seat of most vehicles. 2 removable dishwasher-safe cup holders.

Cosco Empire All-in-One Convertible Car Seat, Moxy

ONE HAND ADJUST With our new single hand adjustable headrest, keeping up with your child's growth has never been easier.. BUILT TO GROW The All-in-One car seat built to grow for extended use through 3 stages Rear-facing 5-40 pounds, Forward-facing 22-65 pounds, and Belt-positioning booster 40-100 pounds.. SIDE IMPACT PROTECTION The Grow and Go Sprint's side impact protection helps keep your child safe. Plus, the 3-position recline makes it easy to get a good fit in your car.. EASY IN, EASY OUT Harness holders keep the harness in an open position so it's easy to get your child in and out of the seat. Clearly visible booster belt path allows for easier buckling..

Safety 1st Getaway All-in-One Convertible Car Seat, Haze

With two modes of use, this LATCH-equipped Safety 1st car seat accommodates infants from 5 pounds up to toddlers weighing 40 pounds in rear-facing mode and kids up to 40 pounds in forward-facing mode.. The five-point harness adjusts easily from the front of the seat and features six heights and three buckle locations.. In both the rear-facing and forward-facing modes, built-in side-impact protection keeps your little one extra secure.. Easily remove the machine-washable and dryer-safe car seat pad to clean..

Maxi-Cosi Pria 3-in-1 Convertible Car Seat, Peach Amber

DESIGNED FOR KEEPING UP WITH YOUR GROWING FAMILY The Pria All-in-One Convertible Car Seat is all about quick and easy, comfy and secure. Pria will simplify your life and ease your mind as you and your child journey together in the years ahead.. TRANSITION THROUGH THE STAGES Pria is thoughtfully designed to support your child as they grow rear-facing 440 lbs. and 1940, forward-facing 2265 lbs. and 2949, and belt-positioning booster 40100 lbs. and 4352.. PURE COZY HAPPY KIDDO YOU Our ultra-soft, yet durable, PureCosi fabrics and padding are made without wool or added fire retardant treatment, which is better for your child and our planet. Machine wash and dry. Available in select color options.. FUSS-FREE IN-AND-OUT Prias easy in-and-out harness holders keep straps from getting in the way when you put your little one in the car seat and take them out. Eliminating the struggle means more time for fun..

Cosco Onlook 2-in-1 Convertible Car Seat, Rear-Facing 5-40 pounds and Forward-Facing 22-40 pounds and up to 43 inches, Black Arrows

With two modes of use, this LATCH-equipped Cosco Kids car seat accommodates infants from 5 pounds up to toddlers weighing 40 pounds in rear-facing mode and kids up to 40 pounds in forward-facing mode.. The five-point harness adjusts easily from the front of the seat and features six heights and three buckle locations.. In both the rear-facing and forward-facing modes, built-in side-impact protection keeps your little one extra secure.. Easily remove the machine-washable and dryer-safe car seat pad to clean..

Disney Baby Onlook 2-in-1 Convertible Car Seat, Rear-Facing 5-40 pounds and Forward-Facing 22-40 pounds and up to 43 inches, Mouseketeer Minnie

With two modes of use, this LATCH-equipped Cosco Kids car seat accommodates infants from 5 pounds up to toddlers weighing 40 pounds in rear-facing mode and kids up to 40 pounds in forward-facing mode.. The five-point harness adjusts easily from the front of the seat and features six heights and three buckle locations.. In both the rear-facing and forward-facing modes, built-in side-impact protection keeps your little one extra secure.. Easily remove the machine-washable and dryer-safe car seat pad to clean..

Safety 1st Grow and Go All-in-One Convertible Car Seat, Evening Dusk

BUILT TO GROW The Safety 1st Grow and Go Convertible Car Seat is for extended use through 3 stages Rear-facing 5-40 pounds, Forward-facing 22-65 pounds, and Belt-positioning booster seat 40-100 pounds.. SIDE IMPACT PROTECTION The Grow and Go's side impact protection helps keep your child safe through all of the 3-in-1 convertible car seats stages.. EASY IN, EASY OUT Harness holders keep the harness in an open position so it's easy to get your child in and out of the car seat.. QUICKFIT HARNESS With the QuickFit Harness you can easily adjust both the harness and headrest with one hand..

Disney Baby Disney MagicSquad 3-in-1 Harnessed Booster Car Seat, Minnie Dot Party

3 MODES OF USE The MagicSquad 3-in-1 Booster Car Seat easily adjusts to grow with your child. Forward-facing harness booster 3065 lbs. and 3449, high-back belt-positioning booster and backless booster 40100 lbs. and 4357.. 1-HAND ADJUSTABLE HEADREST Bring the magic of Disney on every adventure The MagicSquad 3-in-1 Booster Car Seat has 7 positions for a comfortable ride no matter how fast your little one grows.. EASILY CONVERTS TO A BACKLESS BOOSTER As your little one becomes a big kid, this car seat becomes a belt-positioning booster and a backless booster.. ADDITIONAL FEATURES YOULL LOVE 2 removable dishwasher-safe cup holders. Padded armrests. Washer- and dryer-safe seat pads. Fits 3 across the back seat of most vehicles. Lightweight and easy to move from car to car..

Safety 1st Crosstown All-in-One Convertible Car Seat, Rear-Facing 5-40 pounds, Forward-Facing 22-65 pounds, and Belt-Positioning Booster 40-100 pounds, Seal

BUILT TO GROW The Safety 1st Crosstown All-in-One Convertible Car Seat is for extended use through 3 stages Rear-facing 5-40 pounds, Forward-facing 22-65 pounds, and Belt-positioning booster seat 40-100 pounds.. SIDE IMPACT PROTECTION The Crosstown's side impact protection helps keep your child safe through all of the All-in-One convertible car seats stages.. SPRING ASSIST EZ OUT Spring assist EZ out harness system keeps floppy straps propped up, making it easy to get child in and out of the seat. QUICKFIT HARNESS With the QuickFit Harness you can easily adjust both the harness and headrest in one simple step..

Disney Baby Grow and Go All-in-One Convertible Car Seat, Rear-facing 5-40 pounds, Forward-facing 22-65 pounds, and Belt-positioning booster 40-100 pounds, Simply Mickey

Rear Facing 5 - 40 lbs. 19 - 40 in Height. Forward Facing with Harness 22 - 65 lbs 29 - 49 in Height At least 1 YR Old. Belt-positioning Booster 40 - 100 lbs 43 - 52 in Height. QuickFit Harness for easy adjustment of both harness and headrest in one simple step.

Maxi-Cosi Rodi Sport Booster Car Seat, Midnight Black

THE LAST CAR SEAT YOULL EVER NEED Parents celebrate the transition from the toddler to big kid stage when their children can securely buckle up on their own. The RodiSport Booster Car Seat is a 2-in-1 favorite that helps make those changes easy.. GO BACKLESS WHEN THEYRE READY Give your big kid a relaxing ride with the RodiSports multi-positioning, reclining backrest. When they no longer need or want the back support, simply remove it to convert the RodiSport to a convenient, backless booster.. KEEP UP WITH THE GROWTH SPURTS The 1-handed headrest adjustment on the backrest provides 7 height positions to help keep your kiddo comfy as they grow and grow.. MAINTAIN PROPER BELT POSITIONING Easy-to-use vehicle shoulder and lap belt guides help keep the seat belt properly positioned on your not-so-little one..

Cosco Topside Booster Car Seat, Extra-Plush pad, Organic Waves

Extra-plush pad. Lightweight design. Seat-safe design leaves vehicle seats unmarked.

Graco Slimfit (Slimfit w/ 3-Across Fit, Katrina)

Fits 3 car seats across, saving space in your back seat without compromising on the safety you trust and the features you need. 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. Measures 16.7 inches wide, with a spacious seat for your child's comfort and a slim design for more room in the back seat. Graco ProtectPlus Engineered a combination of the most rigorous crash tests that helps to protect your child in frontal, side, rear rollover crashes. 10-position No-Rethread Simply Safe Adjust Harness System allows the headrest and harness to adjust together.

Cosco Rise Backless Booster Car Seat, Ripple

Backless booster car seat 40100 pounds and 43 to 57 in height. Wide base and higher arm rests make it easy for kids to buckle themselves in. Stable platform designed to let kids get in and out of the seat without it tipping. Includes shoulder belt positioning clip for a customized fit. Machine washable and dryer safe seat pad.

Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black

REAR-FACING FOR LONGER - Designed and engineered to keep your child rear facing even longer up to 50 lb, 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. STEEL CORE - Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect. THE ORIGINAL RADIAN 3 ACROSS - Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian combinations without compromising child or passenger comfort. Feel safe having your children secure in the backseat.

Baby Trend Trooper 3-in-1 Convertible Car Seat, Dash Black

3 Modes of Use Rear Facing Infant mode 4-18lbs, Rear Facing Toddler mode 18-40lbs, and Forward Facing Toddler mode 22-65lbs. Immediate Right Installation Angle Rear-facing recline flip foot allows for great installation angles with ease the built-in bubble level indicator helps find the correct angle. Fits Three Across At its widest, the Trooper is 16.75 allowing it to fit 3 across in most vehicle. Lightweight Lightweight shell also allows for use of LATCH installation up to 55 lbs. Now includes two integrated cupholders for convenience for your little one.

Graco TurboBooster 2.0 Highback Booster Car Seat, Declan

Helps safely transport your big kid from 4-10 years old, from 40-100 lb and up to 57 inches tall. Graco ProtectPlus Engineered a combination of the most rigorous crash tests that helps to protect your child in frontal, rear, and rollover crashes additional testing based on the New Car Assessment Program and for extreme car interior temperatures. The boost your child will love. 2-in-1 seat easily converts from a highback booster to backless booster for years of use. Height-adjustable armrests and hide-away cup holders will help keep your child content on the road.