Convertible car seats that also work as booster seats
Which convertible car seats can also be used later as booster seats?
DIONO Radian 3RXT: It is designed for rear-facing, forward-facing and booster use. Booster use is listed for children weighing 40–120 lb (18–54 kg). Diono Radian 3R SafePlus: Booster mode is for children 40–120 lb and 40–57 in tall. Evenflo All4Stages Slim Plus Canopy 4-in-1 Convertible Car Seat: The seat has four modes with these weight ranges: rear-facing 4-40 lb, forward-facing 30-65 lb, high-back booster 40-100 lb and no-back booster 40-120 lb, giving up to 10 years of use. Baby Trend Journey 4-in-1 Convertible Car Seat: Booster use is for children at least 4 years old, weighing 40–100 lb and measuring 44–57 inches. Evenflo All4Stages Slim 4-in-1 Convertible Car Seat: from birth to booster
| Product | Why | Booster limits | Seat weight | Three-across fit |
|---|---|---|---|---|
| 1. DIONO Radian 3RXT sold by anbbaby.com | Booster use is listed for children weighing 40–120 lb (18–54 kg). | Booster use is listed for children weighing 40–120 lb (18–54 kg). guide | The seat weighs 26.4 lb (11.97 kg). guide | The store says three-across will most likely work where the rear row measures at least 51 inches (129.6 cm) armrest to armrest; all three may need seat-belt installation. guide |
| 2. Diono Radian 3R SafePlus sold by anbbaby.com | Booster mode is for children 40–120 lb and 40–57 in tall. | Booster mode is for children 40–120 lb and 40–57 in tall. manual | The seat weighs 29.3 lb. guide | The retailer says the slim-fit design permits three seats across in most midsize vehicles. guide |
| 3. Evenflo All4Stages Slim Plus Canopy 4-in-1 Convertible Car Seat sold by evenflo.com | The seat has four modes with these weight ranges: rear-facing 4-40 lb, forward-facing 30-65 lb, high-back booster 40-100 lb and no-back booster 40-120 lb, giving up to 10 years of use. | The seat has four modes with these weight ranges: rear-facing 4-40 lb, forward-facing 30-65 lb, high-back booster 40-100 lb and no-back booster 40-120 lb, giving up to 10 years of use. listing | Sources disagree on seat weight: the maker says 25.2 lbs, while Consumer Reports' Slim+ product data says 24 lbs. guide | The seat is 16.9 in. wide, which the maker says saves space for other backseat passengers and can allow three car seats across the back seat. listing |
| 4. Baby Trend Journey 4-in-1 Convertible Car Seat sold by babytrend.com | Booster use is for children at least 4 years old, weighing 40–100 lb and measuring 44–57 inches. | Booster use is for children at least 4 years old, weighing 40–100 lb and measuring 44–57 inches. guide | The car seat weighs 16.24 lb. guide | The seat is 18.25 inches at its widest and is designed to fit three across in most vehicles. guide |
| 5. Evenflo All4Stages Slim 4-in-1 Convertible Car Seat sold by evenflo.com | from birth to booster | from birth to booster listing | 23.6 lbs listing | three listing |
Also cited in the text
- DIONO Radian 3RXT, Modes: It is designed for rear-facing, forward-facing and booster use. guide
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Written 2026-10-21T01:37:01.770Z.
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