倉庫運営ノウハウ · 宅配アカウント北米
Dimensional Weight Divisor 139: UPS/FedEx Rules, Rounding Changes, and Negotiation Leverage
A 14x12x10-inch box holding 5 lbs of product bills at 13 lbs under the dimensional weight divisor 139 that UPS and FedEx apply to US domestic shipments. This article breaks down the divisor math, the 2025 rounding rule change, and USPS's move from 166 to 139 — then gives you five levers (right-sizing, killing fractions, poly mailers, negotiating the divisor, invoice audits) to claw the money back, with a formula you can run today.
2026-10-15