Mass calculator

Mass = density × volume.

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Density

Volume

Answer

…

Mass = density × volume.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Step-by-step calculation

Inputs are substituted below. Each line evaluates the next operation; intermediate values are displayed to 12 significant digits while the calculation uses full precision.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

Use consistent units. For kg/m³, enter volume in m³. Density is supplied by you, not inferred from a material name.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using Mass calculator

Mass = density × volume.

Use consistent units. For kg/m³, enter volume in m³. Density is supplied by you, not inferred from a material name.

Next: Density calculator

A worked example

With density = 800, volume = 0.5, the mass is 400.

Next: Flow rate calculator

Before you use the result

Use consistent units. For kg/m³, enter volume in m³. Density is supplied by you, not inferred from a material name.

Example results for density

These examples use Volume: 0.5. They are reference calculations, not recommended settings.

Density	Mass
400	200
800	400
1600	800

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