Compare USPS, UPS, and FedEx for the box you have. Then run a label estimate. We explain the bill — we do not print postage.
You ship every day and every cent of margin matters. We break down carrier rates, negotiated pricing, and software that actually saves money.
Moving, gifts, resale — get a straight answer on what a package should cost without learning an entire industry.
Dimensional weight, surcharges, and zone pricing are confusing by design. We explain them plainly, with sources.
A side-by-side breakdown by weight class, so you stop guessing which carrier is cheapest for a given box.
Read the guide →The formula carriers use to charge for space, not just weight — and how to avoid paying for air.
Read the guide →Enter a package's dimensions and weight to see its billable weight and how it compares across carriers — the same math carriers use to bill you.
Open the Calculator →| Carrier | Billable Wt. |
|---|---|
| USPS Ground Advantage | 13 lb |
| UPS Ground | 13 lb |
| FedEx Ground | 13 lb |
14″×12″×10″ box, 5 lb actual weight — all three carriers now use the same 139 divisor as of July 2026.