Dimensional weight
Tools that answer one question: what will the carrier bill this package as? Start with the all-carrier calculator, or go straight to your carrier's own page for its divisor and rounding.
Dimensional weight calculator
Billable weight at FedEx, UPS Daily, UPS Retail, USPS and DHL Express side by side, with the full working and a threshold meter.
The pillar tool
UPS dimensional weight calculator
Daily Rates divide by 139, Retail Rates by 166. A rate-type switch runs both on the same package.
Locked to UPS rules
FedEx dimensional weight calculator
Divisor 139 on every package, fractions rounded up since August 2025.
Locked to FedEx rules
USPS dimensional weight calculator
The 1 cubic foot rule first, then divisor 139, per DMM 223. The July 2026 divisor change is built in.
Locked to USPS rules
DHL Express dimensional weight calculator
Volumetric weight per piece at 139 in³/lb or 5,000 cm³/kg.
Locked to DHL rules
Volumetric weight calculator
The metric version: centimeters and kilograms at divisors 5,000 and 6,000.
Metric, both divisors
Chargeable weight calculator
The greater of actual and volumetric weight, for express and air cargo modes.
Express and air
Dimensional weight divisors by carrier
The dataset behind every tool above: divisors, rounding and applicability, with sources.
Dataset page