Parcel billable weight
What UPS, FedEx, USPS and DHL will charge a box as, and how much smaller it needs to be to bill less.
What will the carrier bill this package as?
Enter the size and weight. See the billable weight for UPS, FedEx, USPS and DHL Express, and which one is lowest.
in
in
in
⚠ Height looks like centimeters.
lb
Fractions work: 27½ or 3-1/8. Results update as you type.
Lowest billable weightEstimate
16 lb
Lowest at UPS Retail
| Carrier | DIM weight | Billable |
|---|
Estimate only. Your carrier's measurement governs billing. Weight only, never a price.
See the full working
Dispute evidence checklist
If the carrier's bill differs from this estimate, gather this evidence before you dispute:
- Photo of the packed box or pallet with a tape measure across each side
- Photo of the package on a scale showing the weight
- The label or bill of lading copy with the dimensions and weight you entered
- The carrier's adjustment notice with the recorded dimensions
- A screenshot or printout of this result, with the date
- Photos of all six sides if the carrier claims damage or a nonrectangular shape
- Your scale and tape calibration notes, if you have them
What do you need to work out?
Pick the job. Every tool runs on the same carrier rules, so the numbers agree from page to page.
Freight class and LTL
Turn pallet size and weight into density and an estimated freight class on the current 13-tier scale.
Volume and load planning
How much space it takes, how many fit on a pallet, and how many pallets fit in a container.
Seller tools
Find the smallest workable box for a product, or check a whole product list at once.
The rules behind the numbers
Both tables below feed every calculator on the site. Each figure traces to a carrier or NMFTA source with a checked date.
Dimensional weight divisors
| Carrier | Divisor | Applies to |
|---|---|---|
| FedEx | 139 | All packages in your own packaging |
| UPS Daily | 139 | Daily-rate accounts |
| UPS Retail | 166 | Retail rates |
| USPS | 139 | Over 1 cu ft only |
| DHL Express | 139 | Express from the US |
Changed in 2026USPS moved its divisor from 166 to 139 on July 12, 2026. Older pages still teach 166; that figure is out of date.
Freight class by density
| Density (lb/ft³) | Class |
|---|---|
| Under 1 | 400 |
| 1 to under 2 | 300 |
| 2 to under 4 | 250 |
| 4 to under 6 | 175 |
| 6 to under 8 | 125 |
| 8 to under 10 | 100 |
| 10 to under 12 | 92.5 |
| 12 to under 15 | 85 |
| 15 to under 22.5 | 70 |
| 22.5 to under 30 | 65 |
| 30 to under 35 | 60 |
| 35 to under 50 | 55 |
| 50 and over | 50 |
NMFTA 13-tier scale, effective July 19, 2025. The NMFC item governs your billed class.
Full freight class chart
Why you can rely on these numbers
Sourced from the carriers
Divisors and rounding come from the UPS, FedEx, USPS and DHL guides, and the freight scale from NMFTA. Each figure carries a source and a checked date.
Estimates that say so
Every result is labeled an estimate. Your carrier's measurement governs billing, and the NMFC item governs class. We never quote a price.
Private by design
Calculations run in your browser. Nothing you enter is uploaded or stored, and there is nothing to sign up for.
Guides
Plain answers to the problems shippers run into, each with the calculator that checks your numbers.
All guides