# Width of infant car seats for three\-across seating

Which infant car seats are narrow enough to fit three across in a back seat?

Phil & Teds Alpha: The seat is 17 inches wide\. Britax One4Life Clicktight All\-in\-One Car Seat: Independent testing measured the seat at 28\.1 lb and about 19\.4 inches wide, making it comparatively heavy and broad rather than travel\-friendly or narrow\.

### 1. [Phil & Teds Alpha](/products/ucp/anbbaby-com/1706591092836) (sold by anbbaby\.com)

The seat is 17 inches wide\.

- Width: The seat is 17 inches wide\. (listing) <https://anb-baby.myshopify.com/products/alpha-infant-car-seat-with-latch-base-black.json>
- Weight: The store lists the seat weight as 7\.5 lb\. (listing) <https://anb-baby.myshopify.com/products/alpha-infant-car-seat-with-latch-base-black.json>
- Installation: A LATCH base is included\. (listing) <https://anb-baby.myshopify.com/products/alpha-infant-car-seat-with-latch-base-black.json>

### 2. [Britax One4Life Clicktight All\-in\-One Car Seat](/products/ucp/anbbaby-com/9939272139038) (sold by anbbaby\.com)

Independent testing measured the seat at 28\.1 lb and about 19\.4 inches wide, making it comparatively heavy and broad rather than travel\-friendly or narrow\.

- Width: Independent testing measured the seat at 28\.1 lb and about 19\.4 inches wide, making it comparatively heavy and broad rather than travel\-friendly or narrow\. (review) <https://www.babygearlab.com/reviews/vehicle-safety/convertible-car-seat/britax-one4life-clicktight>
- Weight: Independent testing measured the seat at 28\.1 lb and about 19\.4 inches wide, making it comparatively heavy and broad rather than travel\-friendly or narrow\. (review) <https://www.babygearlab.com/reviews/vehicle-safety/convertible-car-seat/britax-one4life-clicktight>
- Installation: Independent testers preferred vehicle\-belt installation: the wide pathway, ClickTight tensioner and accessible slots produced a tight, stable result with little or no wiggle\. (review) <https://www.babygearlab.com/reviews/vehicle-safety/convertible-car-seat/britax-one4life-clicktight>

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Written 2026-10-09T19:58:43.917Z.

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