FedEx Dimensional Weight Calculator (139 Divisor)

Divisor (inches)

139 in³/lb

Divisor (metric)

5,000 cm³/kg

Example: 20×16×12 in box

27.6 lb dim

FedEx applies the 139 divisor to Express and Ground packages in the US; international uses 5,000 cm³/kg.

Calculate FedEx dimensional weight

Units

Length

Width

Height

Actual weight

Dim weight

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Billable weight

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Formula: L × W × H ÷ 139 (inches) or ÷ 5,000 (cm). Billable = greater of actual and dim weight, rounded up. Compare carriers on the main dim weight calculator.

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