m = ρ × V
Calculate mass from density and volume
Multiply a supplied mass density by volume and choose the output mass unit.
Formula and worked example
How to calculate mass from density and volume
Mass (m) = density (ρ) × volume (V).
Reverse check: 1.6 kg ÷ 2 L = 0.8 kg/L.
Worked example
0.8 kg/L × 2 L = 1.6 kg. The litre units cancel, leaving kilograms.
Match the volume units
The volume unit inside the density must match the volume input before multiplication. The calculator performs that conversion exactly.
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