Density Calculator

Solve ρ = m/V and convert the result between kg/m³, g/cm³, and lb/ft³ in your browser.

Solve for

Mass

Volume

Density

—kg/m³

—g/cm³

—lb/ft³

—specific gravity vs water

—ρ = m / V

These are idealized classical-physics calculations. Real systems can differ because of air resistance, friction, deformation, measurement uncertainty, non-constant forces, or other effects not included in the selected model.

How to use this Density Calculator

Calculate density, mass, or volume from the other two values with unit conversion. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.