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Geometry

Cuboid Volume Calculator

Multiply the three perpendicular dimensions of a rectangular box.

Let’s calculate.

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Your result
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Rounded to up to 2 decimal places.

Measurement units

Changing the input unit also selects its matching result unit. Choose another result unit to convert the answer. Input numbers stay unchanged.

SI prefixes and selected international / customary units. Coverage: SI and selected current customary units. Historical units are excluded.

See what you’re calculating

lengthheightwidth
Volume = length × width × height

Multiply the three perpendicular dimensions of a rectangular box.

Illustration not to scale.

No account needed. Your inputs stay in this browser.

THE IDEA, SIMPLY

How it works

Multiply the three perpendicular dimensions of a rectangular box.

FORMULA

Volume = length × width × height

A worked example

5 m × 3 m × 2 m = 30 m³.

Formula & detailed explanation

All lengths nonnegative. Output uses cubic units.

Calculations use decimal arithmetic with 40 significant digits internally. Choose 0–8 decimal places for the displayed result. Trailing zeros are omitted. Rounding affects only the displayed and copied result; very small values may round to zero. Accepted inputs have up to 100 characters and magnitudes from 10⁻¹⁰⁰ to 10¹⁰⁰, plus zero.

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