Best Convertible Car Seat Safety Ratings In July 2025

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Are you looking for the Top 10 Best Convertible Car Seat Safety Ratings? Well, just grab a cup of coffee and read on! We are huge fans of Best Convertible Car Seat Safety Ratings and have done our comprehensive research here.

To help you in your search, we have completed this list of the Best Convertible Car Seat Safety Ratings.

Top Rated Best Convertible Car Seat Safety Ratings Of 2025

Rank	Product Name	Score
1	Graco 4Ever DLX 4 in 1 Car Seat | Infant to Toddler Car Buy Now	9.7 Buy Now
2	Graco 4Ever DLX 4 in 1 Car Seat | Infant to Toddler Car Buy Now	9.5 Buy Now
3	Diono 2019 Radian 3RX All-in-One Convertible Car Seat, Red Buy Now	9.1 Buy Now
4	Graco Extend2Fit Convertible Car Seat | Ride Rear Facing Longer with Extend2Fit, Binx Buy Now	8.8 Buy Now
5	Britax Marathon ClickTight Convertible Car Seat - 1 Layer Impact Protection, Verve Buy Now	8.6 Buy Now
6	Chicco NextFit Zip Convertible Car Seat, Juniper Buy Now	8.3 Buy Now
7	Diono 2019 Radian 3RXT All-in-One Convertible Car Seat, Grey Oyster Buy Now	8.1 Buy Now
8	Graco Extend2Fit 3-in-1 Car Seat, Norah Buy Now	7.8 Buy Now
9	Graco Extend2Fit 3 in 1 Car Seat | Ride Rear Facing Longer Buy Now	7.5 Buy Now
10	Britax Boulevard ClickTight Anti-Rebound Bar Convertible Car Seat - 2 Layer Impact Protection Buy Now	7.2 Buy Now

1. Graco 4Ever DLX 4 in 1 Car Seat | Infant to Toddler Car

• Simply safe adjust harness system adjusts the height of your harness and headrest to 10 positions in one motion to ensure that your child is always properly secured
• Graco protect plus engineered helps to protect your little one in frontal, side, rear and rollover crashes
• Integrated belt lock off for easy vehicle seat belt installation
• Care: metal and plastic parts may be cleaned with mild soap and cool water
• 4 in 1 car seat gives you 10 years of use: seamlessly transforms from rear facing harness car seat (4 40 pounds), to forward facing harness car seat (22 65 pounds), to high back belt positioning booster (40 100 pounds), to backless belt positioning booster (40 120 pounds)
• 6 position recline helps keep your growing child comfy on your many journeys together

2. Graco 4Ever DLX 4 in 1 Car Seat | Infant to Toddler Car

• The graco exclusive inright latch attachment provides an easy, one second attachment with an audible click to help ensure secure installation
• 4 in 1 car seat gives you 10 years of use: seamlessly transforms from rear facing harness car seat (4 40 pound ), to forward facing harness car seat (22 65 pound ), to highback belt positioning booster (40 100 pound ), to backless belt positioning booster (40 120 pound )
• Simply safe adjust harness system adjusts the height of your harness and headrest to 10 positions in one motion to ensure that your child is always properly secured
• 6 position recline helps keep your growing child comfy on your many journeys together. steel-reinforced frame provides strength and durability
• Integrated belt lock off for easy vehicle seat belt installation
• Graco protectplus engineered helps to protect your little one in frontal, side, rear and rollover crashes

3. Diono 2019 Radian 3RX All-in-One Convertible Car Seat, Red

• Lovingly engineered: the radian 3rx is built with automotive-strength steel, engineered into a dual spine, which manages and dissipates energy with an unyielding structure to protect your baby. our audible click superlatch system makes installation easy.
• Made of seattle: we are from seattle, a city where being different is the norm and so is the radian 3rx. it folds flat, so you can travel the world and is faa approved for use on an aircraft, so you can take safety with you wherever you go.
• Business class comfort: inspired by the best in european style, our radian 3rx has bright soft fabric covers, and a memory foam seat bottom. lined with energy absorbing foam, comfort and safety go hand in hand
• Joy of the journey: from birth, keep your little one rear-facing longer to 40 lbs., and as they grow to 100 lbs. (10 years approx.) our long-range lifespan protects your child facing-forward.
• Threes not a crowd: for safety that fits 3 across the radian 3rx packs all our innovative safety features into a sleek and slim design that allows you to fit three across (in most mid-size vehicles). now the whole family can travel, together

4. Graco Extend2Fit Convertible Car Seat | Ride Rear Facing Longer with Extend2Fit, Binx

• 10-position headrest adjusts easily for your growing child
• 6-position recline helps keep your growing child comfy on your many journeys together
• Up to 50 lb rear-facing allowing your child to safely ride rear-facing longer
• Designed to help protect your rear-facing infant from 4-50 lb and your forward facing toddler from 22-65 lb
• Graco protectplus engineered: a combination of the most rigorous crash tests that helps protect your child in frontal, side, rear & rollover crashes, additional testing based on the new car assessment program and for extreme car interior temperatures
• 4-position extension panel adjusts to provide 5" additional leg room allowing your child to safely ride rear-facing longer

5. Britax Marathon ClickTight Convertible Car Seat - 1 Layer Impact Protection, Verve

• Relax and recline: 7 recline positions ensure comfort and the best vehicle installation angle
• No rethreading, ever: 14 position harness, 2 position buckle for a comfortable fit as your child grows
• Fits: rear facing 5 to 40 pounds and forward facing 20 to 65 pounds, dimensions: 23 x 18.5 x 23.5 inches (lxwxh), shoulder width16 inch
• Surrounded in safety: a layer of side impact protection, steel frame and impact absorbing base
• Easy installation: patented click tight makes car seat installation as simple as buckling a seat belt

6. Chicco NextFit Zip Convertible Car Seat, Juniper

• Remarkably easy installation with a 9-position reclinesure leveling system, supercinch latch tightener and locksure seat belt tightening system
• Superior duoguard protection with a deep rigid shell and eps energy-absorbing foam, plus a steel-reinforced frame
• Zip-off padding is soft and machine washable for comfort and convenience
• Includes dishwasher-safe, space-saving cupfolder
• Accommodates growing children with a removable newborn positioner, no-rethread harness, 9-position headrest, and easy transition from rear-facing to forward-facing
• Assembled product max seat back height: 26 in

7. Diono 2019 Radian 3RXT All-in-One Convertible Car Seat, Grey Oyster

• Business class comfort: inspired by the best in european style, our radian 3rxt has bright soft fabric covers, and a memory foam seat bottom. lined with energy absorbing foam, comfort and safety go hand in hand
• Made of seattle: we are from seattle, a city where being different is the norm and so is the radian 3rxt. it folds flat, so you can travel the world and is faa approved for use on an aircraft, so you can take safety with you wherever you go. care & maintenance : cover machine washable at 86f/30c/cold
• Joy of the journey: from birth, keep your little one rear-facing longer to 40 lbs., and as they grow to 100 lbs. (10 years approx.) our long-range lifespan protects your child facing-forward.
• Lovingly engineered: the radian 3rxt is built with automotive-strength steel, engineered into a dual spine, which manages and dissipates energy with an unyielding structure to protect your baby. our audible click superlatch system makes installation easy.
• Threes not a crowd: for safety that fits 3 across the radian 3rxt packs all our innovative safety features into a sleek and slim design that allows you to fit three across (in most mid-size vehicles). now the whole family can travel, together

8. Graco Extend2Fit 3-in-1 Car Seat, Norah

• No-rethread harness: simply safe adjust harness system allows you to adjust the headrest and harness in one motion, helping to save you time and ensure your child is always properly secured
• Car seat with 4-position extension panel adjusts to provide up to 5" additional legroom, allowing your child to ride safely rear-facing longer
• 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
• Ride rear-facing up to 50 lb, allowing your child to ride safely rear-facing longer
• From day one, this 3-in-1 car seat helps to protect your child, from rear-facing harness (4-50 lb) to forward-facing harness (22-65 lb) to highback booster (40-100 lb)
• Choose the perfect headrest height from 10 positions to get the safest fit for your child as they grow

9. Graco Extend2Fit 3 in 1 Car Seat | Ride Rear Facing Longer

• One-hand, 10-position adjustable headrest easily adapts for your growing child
• 6-position recline helps keep your growing child comfy on your many journeys together
• Inright latch system for an easy, one-second latch attachment
• Fuss free harness storage holds the buckle out of the way, so its easy to get baby in and out
• Simply safe adjust harness system headrest and harness adjust together

10. Britax Boulevard ClickTight Anti-Rebound Bar Convertible Car Seat - 2 Layer Impact Protection

• Anti-rebound bar: padded, steel bar minimizes crash forces by stabilizing the car seat when installed rear facing
• Clicktight installation system is the safest and simplest technology on the market, open the front of the car seat, feed the seatbelt through the indicated path, and click the seat shut, that's all you need to do for rock solid installation
• Recommend that all infants and toddlers should ride in a rear facing car seat until they are 2 years of age or until they reach the highest weight or height allowed by their car seat manufacturer, britax strongly recommends that children ride rear facing to the highest weight or height specified
• Safecell impact protection is a safety system including a steel frame, energy absorbing base, v shaped tether to minimize seat rotation, and staged release stitches that slow and reduce forward movement during a crash