Box volume
This page is a rectangular prism only: length, width, and height are converted to millimetres, then multiplied. It does not apply board thickness or wall formulas. Fill defaults to 100% and stays between 0 and 100, for the volume you can actually use. 1 inch = 25.4 mm.
For a mailer inner size, take L×W×H from the packaging size converter.
Enter sizes
mm
mm
mm
%
0–100. Below 100, usable volume is listed separately.
Units
Volume
- Cubic millimetres
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- Cubic centimetres
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- Litres
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- Cubic inches
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Usable volume
- Cubic millimetres
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- Cubic centimetres
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- Litres
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- Cubic inches
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After converting to millimetres, V = L × W × H. 1 cm³ = 1,000 mm³, 1 L = 1,000,000 mm³, 1 in³ = 25.4³ mm³.
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