Dimensional Weight Calculator

Summary

Enter package dimensions and actual weight to instantly see the billable dimensional weight for FedEx, UPS, USPS, and DHL.

How it works

1. Enter the package length, width, and height in inches or centimeters.
2. Enter the actual (scale) weight of the package.
3. Select your unit system (imperial or metric).
4. The calculator applies each carrier's DIM divisor to compute dimensional weight.
5. Billable weight is the higher of actual weight vs. dimensional weight — shown per carrier.
6. Use the results to pick the most cost-effective carrier for your shipment.

Use cases

• Estimate shipping costs before printing a label for a light but bulky box.
• Compare FedEx vs UPS vs USPS rates for the same package.
• Audit carrier invoices to verify billable weight charges.
• Optimize box sizing to reduce dimensional weight surcharges.
• Plan packaging for e-commerce fulfillment and subscription boxes.
• Calculate DHL Express dimensional weight for international shipments.

Frequently Asked Questions