Density Calculator

Solve ρ = m/V — find mass, volume, or density from any two values

ρ = m / V → 2 kg/L = 100 kg / 50 L
Density (ρ)
2kg/L
Mass (m)
100kg
Volume (V)
50L
25%50%75%ρ = 2kg/Lm = 100 kgV50 Lρ = m / V

About this calculator

The Density Calculator solves ρ = m/V for mass, volume, or density. Enter any two known values to find the third. Supports multiple unit combinations including kg/m³, g/cm³, g/L, and lb/ft³ — ideal for science, engineering, and everyday material comparisons.

Common examples

  • m = 500 g, V = 250 mL → ρ = 2 g/cm³ (similar to aluminum)
  • ρ = 1 g/cm³, V = 1 L → m = 1 kg (water)
  • m = 7.87 g, V = 1 cm³ → ρ = 7.87 g/cm³ (iron)
  • ρ = 0.92 g/cm³, m = 920 g → V = 1,000 cm³
  • m = 2 kg, ρ = 2,700 kg/m³ → V ≈ 0.000741 m³ (aluminum block)