# Weight ranges for Cosco car seats and boosters What weight range do Cosco car seats and boosters cover? Cosco Mightyfix LX Convertible Car Seat: The listing says to use it from 5 to 65 pounds\. The listed rear\-facing range is 5–40 pounds\. The listed forward\-facing range is 22–65 pounds\. Cosco Rise LX Booster Car Seat: The store says the seat accommodates children from 40\-100 lbs\. Cosco Mighty Fit 65 DX Convertible Car Seat: The listed rear\-facing range is 5–40 pounds\. The listed forward\-facing range is 22–65 pounds\. Cosco Kids Scenera Extend Infant & Toddler Convertible Car Seat: Rear\-facing use is listed from 5 to 40 lbs\. Forward\-facing use is listed from 30 to 50 lbs\. Cosco Onlook 2\-in\-1 Convertible Car Seat: The store says the seat is for infants and toddlers up to 40 pounds\. ### 1. [Cosco Mightyfix LX Convertible Car Seat](/products/ucp/goodbuygear-com/7243100258407) (sold by goodbuygear\.com) The listing says to use it from 5 to 65 pounds\. - Overall weight: The listing says to use it from 5 to 65 pounds\. (listing) - Rear\-facing weight: The listed rear\-facing range is 5–40 pounds\. (listing) - Forward\-facing weight: The listed forward\-facing range is 22–65 pounds\. (listing) - Booster weight: - ### 2. [Cosco Rise LX Booster Car Seat](/products/ucp/goodbuygear-com/7682856321127) (sold by goodbuygear\.com) The store says the seat accommodates children from 40\-100 lbs\. - Overall weight: - - Rear\-facing weight: - - Forward\-facing weight: - - Booster weight: The store says the seat accommodates children from 40\-100 lbs\. (listing) ### 3. [Cosco Mighty Fit 65 DX Convertible Car Seat](/products/ucp/goodbuygear-com/7625135849575) (sold by goodbuygear\.com) The listed rear\-facing range is 5–40 pounds\. - Overall weight: - - Rear\-facing weight: The listed rear\-facing range is 5–40 pounds\. (listing) - Forward\-facing weight: The listed forward\-facing range is 22–65 pounds\. (listing) - Booster weight: - ### 4. [Cosco Kids Scenera Extend Infant & Toddler Convertible Car Seat](/products/ucp/goodbuygear-com/10259853803623) (sold by goodbuygear\.com) Forward\-facing use is listed from 30 to 50 lbs\. - Overall weight: - - Rear\-facing weight: Rear\-facing use is listed from 5 to 40 lbs\. (listing) - Forward\-facing weight: Forward\-facing use is listed from 30 to 50 lbs\. (listing) - Booster weight: - ### 5. [Cosco Onlook 2\-in\-1 Convertible Car Seat](/products/ucp/goodbuygear-com/7240701411431) (sold by goodbuygear\.com) The store says the seat is for infants and toddlers up to 40 pounds\. - Overall weight: The store says the seat is for infants and toddlers up to 40 pounds\. (listing) - Rear\-facing weight: - - Forward\-facing weight: - - Booster weight: - Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-26T03:10:20.174Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)