SeatFitFindercar seats, by spec

Convertible car seats

Rear-facing for infancy, then forward-facing with a harness. The 'keep them rear-facing longest' workhorse — many parents' one big seat.

🛟 Fit is decided by your seat manual + your vehicle manual. This page lists published specs to help you shortlist — it is not installation or safety advice, and it does not confirm a seat fits a specific car. Confirm install with the manuals, NHTSA, or a free certified car-seat technician (CPST) check.

Last verified 2026-06-11 · 12 models

Car seatStageNarrow (3-across)Ext. rear-facingFAALightweight
Graco Extend2FitConvertible
Chicco NextFit MaxConvertible
Britax Marathon ClickTightConvertible
Britax Boulevard ClickTightConvertible
Nuna RAVAConvertible
Clek FoonfConvertible
Clek FlloConvertible
Diono Radian 3QXTConvertible
Diono Radian 3RXTConvertible
Cosco Scenera NEXTConvertible
WAYB PicoConvertible
Evenflo Tribute LXConvertible

Other stages: Infant · All-in-one · Booster · narrow seats for 3-across