Calculate density
ρ = m / VMeasurements and matter
Calculate mass density, mass, or volume using compatible metric units.
Formula
ρ = m / V Mass density is the mass of a sample divided by the volume it occupies.
| Symbol | Quantity | SI | Supported units |
|---|---|---|---|
| ρ | mass densityMass per unit volume under the stated conditions. | kg/m³ | kg/m³, g/cm³ |
| m | massMass of the measured sample. | kg | kg, g |
| V | volumeVolume occupied by the measured sample. | m³ | m³, L, cm³ |
Calculate density
ρ = m / VCalculate mass
m = ρ × VCalculate volume
V = m / ρA sample has a mass of 2.7 kg and a volume of 0.001 m³. Find its density.
Result: 2,700 kg/m³
A liquid has a density of 1 g/cm³ and a volume of 250 cm³. Find its mass.
Result: 250 g
NIST · Reviewed 28 August 2026
Authoritative definition, symbol, and SI unit of mass density.
OpenStax · Reviewed 28 August 2026
Educational use of mass, volume, density, and unit conversion.