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Measurement · Units

Density, Mass & Volume Calculator

Solve ρ = m/V with explicit, internally consistent mass and volume units.

Formula shown Runs locally Reviewed Aug 11, 2026
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Equation guide

Mass and volume expressed in a consistent unit system

Density definition

ρ = m/V

Mass

m = ρV

Volume

V = m/ρ
Measurement calculator

Solve density, mass, or volume

Mass, volume, and density are entered and displayed with up to three decimal places.

ρ=m/V

The solved measurement will appear here.

Using the model

Symbols, assumptions and limitations

Interpretation notes

Use a consistent unit system. The visible unit follows the values entered; this tool does not silently mix kg, g, m³, or cm³.

Worked examples

See the method in practice

01

Material density

A 10 kg object occupying 2 m³ has a density of 5 kg/m³.

02

Water reference

Liquid water near room temperature is approximately 998 kg/m³.

Questions

Frequently asked

Can I use g/cm³?

Yes, if mass is in grams and volume is in cubic centimetres, the result is g/cm³.

Is density constant?

It can change with temperature, pressure, composition, and phase.

Sources & review

Equations and examples are checked against the references below. Results are educational and should be independently verified for safety-critical work.

OpenStax Physics — density

Written by the STEM Hub editorial team · Reviewed August 11, 2026 · Review methodology