Shipping Rates Calculator
Estimate shipping costs by package weight, dimensions (dimensional weight), destination zone, and carrier — compare USPS, FedEx, and UPS rates side by side.
Common shipping rates
- 1 lb · zone 1 = $8.70
- 1 lb · zone 7 = $11.50
- 2 lb · zone 5 = $13.80
- 3 lb · zone 3 = $14.30
- 5 lb · zone 1 = $11.50
- 5 lb · zone 7 = $24.10
- 10 lb · zone 5 = $33.90
- 15 lb · zone 3 = $33.40
- 20 lb · zone 1 = $21.80
- 20 lb · zone 7 = $65.90
- 30 lb · zone 5 = $95.20
- 50 lb · zone 3 = $88.50
How shipping rates are calculated
Carriers price on billable weight and zone. Billable weight is the greater of actual weight and dimensional weight — length × width × height ÷ a divisor (139 for US domestic air). Zone is distance banded 1 to 8. A large light box is charged on its size, not its weight.
Shipping cost examples
- 1 lb, zone 1, USPS Priority Mail
- $8.70
- 5 lb, zone 4
- $17.10Same box, four zones further: nearly double.
- 20 lb, zone 5
- $55.20
- 12 × 12 × 12 in, 3 lb actual
- billed as 12.43 lb1,728 ÷ 139 — dimensional weight wins, and the price roughly quadruples.
Why your quote may differ
These are representative published base rates for comparison, not live quotes. Negotiated commercial rates, fuel surcharges, residential and remote-area fees, and signature or insurance options all move the final number. Check with the carrier before pricing a product on it.
Related calculators
- Shopify fee calculator — the other cost between price and profit
- Profit margin calculator — what postage leaves of the sale
- Markup calculator — pricing that has to absorb the postage
Worked with this calculator's own formula. Change any figure above in the tool to see your own numbers.