Dimensional and volumetric weight calculator

Enter package dimensions and actual weight. Use your carrier’s divisor to calculate dimensional weight and compare the weight used for billing.

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Set your data

Length

Width

Height

Dimension unit

Divisor: dimension unit³ per weight unit

Actual weight per package

Number of identical packages

Weight unit

Enter one package’s dimensions and weight, identical quantity and carrier divisor. Changing cm/inches or kg/lb also requires changing divisor. Example: 40×30×20 cm ÷ 5000 = 4.8 kg.

Result

Your result will appear here.

Actual and volumetric weight

The bars compare both weights for one package. Try equal weights or reduce the shipment to one package.

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How to use the tool

Enter one package’s dimensions and weight, identical quantity and carrier divisor.
Changing cm/inches or kg/lb also requires changing divisor.
Example: 40×30×20 cm ÷ 5000 = 4.8 kg.
The bars compare both weights for one package. Try equal weights or reduce the shipment to one package.
Drag the controls in the figure, or focus them and use the arrow keys. The form updates immediately. Use the form fields for values outside the figure’s scale.
The result updates as you edit the fields or the figure. You can copy it immediately.

Method and principles

Formula

W = \frac{l \times w \times h}{D}

Use your carrier’s divisor and units: 5000 is only an example for cm³/kg. No carrier rounding is applied.

Practical example

Input

Length: 40
Width: 30
Height: 20
Dimension unit: cm
Divisor: dimension unit³ per weight unit: 5000
Actual weight per package: 3
Number of identical packages: 1
Weight unit: kg

Result

Dimensional weight: 4.8 kg Theoretical chargeable weight: 4.8 kg Total volume: 24,000 cm³

Calculation steps

Substitute the example values into the formula.
$W = \frac{40 \times 30 \times 20}{5000}$

Limits and checks

Limits and checks
Parameter	Value
Length	≥ 0.001; ≤ 1000000000
Width	≥ 0.001; ≤ 1000000000
Height	≥ 0.001; ≤ 1000000000
Divisor: dimension unit³ per weight unit	≥ 0.001; ≤ 1000000000
Actual weight per package	≥ 0; ≤ 1000000000
Number of identical packages	≥ 1; ≤ 100000

PRACTICAL GUIDES

Why a light package can have a higher billable weight

A package takes up space even when its contents are light. Understanding a shipping estimate requires comparing scale weight with volume under the selected service’s rules.

Follow the steps