Our Top 10 Recommendations for 3-In-1 Convertible Car Seats

Up-to-date pricing and reviews for 3-in-1 convertible car seats on the market

SaleBestseller No. 1

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 & rollover crashes
No-rethread simply safe adjust harness system allows the headrest and harness to adjust together in one motion
Choose the perfect headrest height from 10 positions to get the safest fit for your child as they grow

Bestseller No. 2

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
Lightweight, portable seat is ideal for busy, active parents
One-hand, 8-position adjustable headrest grows with your child

Bestseller No. 3

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 vehicles
Lightweight: lightweight shell also allows for use of latch Installation up to 55 lbs
Shoulder & crotch buckle adjustment: 5-position shoulder height adjustment and 3- position crotch buckle for seat adjustment

SaleBestseller No. 4

SnugLock Technology: Installs in less than one minute using vehicle seat belt or LATCH
3-in-1 car seat grows with your child from rear-facing harness, to forward-facing harness, to highback booster, from 5-100 lb
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
No-Rethread Harness: With the Simply Safe Adjust Harness System, the headrest and harness adjust in one motion, helping to save you time and ensure your child is always properly secured
Keep your child comfortable with 10 headrest positions and removable head and body infant inserts; 6 recline positions help with installation and ensure a comfy ride

Bestseller No. 5

Built to grow for extended use through 3 stages: Rear-facing 5-50 lbs., forward-facing 22-65 lbs., and belt-positioning Booster 40-100 lbs. Actual fit may vary. Not all children will comfortably fit in the seat for the full weight and height ranges Listed.
Comfort cool technology keeps baby cool, dry and comfortable
Side Impact protection
Three cozy reversible pillows for a snug fit
Soft touch armrests with integrated storage pockets

Bestseller No. 6

3-In-1 seating system: Rear-facing, from 4-40 pounds; Forward-facing to 65 pounds; And up to 100 pounds in booster mode
Side impact protection with cell protects your child's head where it's needed most in a side impact crash
In and out harness holders keep straps out of the way when buckling
1 click latch system, with easy click-in for better installation
Quick fit shoulder harness automatically raises the harness and headrest height. Flip away buckle

SaleBestseller No. 7

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
Choose the perfect headrest height from 10 positions to get the safest fit for your growing child
6-position recline keeps your child comfy and helps for a better installation

SaleBestseller No. 8

The 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 to 100 pounds
Side impact protection
Harness holders: With the harness held back, it's easy to get your child in and out of the seat
Grow with baby pillows for a comfortable ride
Quick fit harness for easy adjustment of both harness and headrest in 1 simple step

Bestseller No. 9

Integrated harness storage compartment holds unused harness straps while in the belt positioning booster mode
One-hand, 5-position adjustable headrest is easy to use and adapts for your growing child.Do not use bleach
Keeps your child in a booster up to 120 pounds for longevity of use, in keeping with American Academy of Pediatrics' recommendations
Fuss Free harness storage holds the buckle out of the way, so it’s easy to get baby in and out. Harness straps may be spot cleaned
Body support helps keep your child comfy.5-Point Harness Mode Height:27-49 inches

SaleBestseller No. 10

SnugLock Technology: Installs in less than one minute using vehicle seat belt or LATCH
3-in-1 car seat grows with your child from rear-facing harness, to forward-facing harness, to high back booster, from 5-100 pounds
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
No-Rethread Harness: With the Simply Safe Adjust Harness System, the headrest and harness adjust in one motion, helping to save you time and ensure your child is always properly secured
Keep your child comfortable with 10 headrest positions and removable head and body infant inserts; 6 recline positions help with installation and ensure a comfy ride