10 Cosco models listed in the US: 1 infant seat, 2 convertible seats, 1 all-in-one seat, 2 harness-to-booster seats, 1 2-in-1 booster, 3 backless boosters. Limits and specifications were checked against Cosco’s US site and manuals on September 17, 2026. Cosco US site (opens in a new tab)
Limits and specifications are each manufacturer’s own, checked September 17, 2026. A dash means the maker does not publish that number. A highlighted number is simply the highest or lowest value in this table, not a recommendation. Prices are Amazon’s, or the manufacturer’s own where Amazon has no listing, as of the date each was read, and are subject to change; the seller’s price at checkout applies. Photos come from the same Amazon listing or, where Amazon has none, the manufacturer’s site.
| Mode | Weight | Height |
|---|---|---|
| Rear-facing harness | 5–40 lb | 19–40 in |
| Forward-facing harness | 30–65 lb | 34.4–49 in |
| Belt-positioning booster | 40–100 lb | 43.4–52 in |
$99.00Price on coscokids.com as of 2026-10-07 05:43 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Rear-facing harness | 5–40 lb | 19–40 in |
| Forward-facing harness | 30–65 lb | 34.4–49 in |
$89.98Price on coscokids.com as of 2026-10-07 05:43 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Forward-facing harness | 40–65 lb | 43.4–49 in |
| Belt-positioning booster (high-back) | 40–100 lb | 43.4–52 in |
$49.97Price on coscokids.com as of 2026-10-07 05:43 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Forward-facing harness | 40–65 lb | 43.4–49 in |
| Belt-positioning booster (high-back) | 40–100 lb | 43.4–52 in |
$74.98Rainbow · Amazon price as of 2026-11-01 12:09 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Rear-facing infant carrier | 4–30 lb | Up to 32 in |
$199.99Price on coscokids.com as of 2026-10-07 05:43 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| High-back belt-positioning booster | 40–100 lb | 43.4–57 in |
| Backless belt-positioning booster | 40–100 lb | 43.4–57 in |
$47.99Price on coscokids.com as of 2026-10-07 05:43 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Backless belt-positioning booster | 40–100 lb | 43.4–57 in |
$19.98Price on coscokids.com as of 2026-10-07 05:43 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Rear-facing harness | 5–40 lb | 19–40 in |
| Forward-facing harness | 30–50 lb | 34.4–44 in |
$59.00Price on coscokids.com as of 2026-10-07 05:43 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Backless belt-positioning booster | 40–100 lb | 43.4–57 in |
$27.82Grape · Amazon price as of 2026-11-01 12:09 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Backless belt-positioning booster | 40–100 lb | 43.4–57 in |
$19.99Purple Gem · Amazon price as of 2026-11-01 12:09 UTC, subject to change
Limits and specifications come from each manufacturer’s US website and instruction manual. They are not a fit or safety verdict, and I have not hands-on tested these seats. Follow your seat’s own labels and manual. Amazon links are affiliate links. See my sources and limits.
