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Geometry

Cube Volume Calculator

Find the space inside a cube from one edge length.

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

sideheightwidth
Volume = side³

Find the space inside a cube from one edge length.

Illustration not to scale.

No account needed. Your inputs stay in this browser.

THE IDEA, SIMPLY

How it works

Find the space inside a cube from one edge length.

FORMULA

Volume = side³

A worked example

Side 3 m gives 27 m³.

Formula & detailed explanation

Side length must be nonnegative.

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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