FedEx DIM Weight Calculator
Calculate FedEx dimensional weight with correct rounding rules. DIM divisor 139, dimensions rounded up to next inch.
FedEx Rounding Rules
- DIM divisor: 139 in³/lb
- Each dimension rounded UP to the next whole inch
- Billable weight = ceiling of max(actual, DIM)
- Final weight rounded to whole pounds
Note: Rules may vary by service type, account agreements, and destination. View official FedEx documentation →