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Density Calculator

Calculate density, mass, or volume using the fundamental formula ρ = m/V with multi-unit conversions, specific gravity, and common material presets.

Material Presets:

Solve For:

Mass (m)

Volume (V)

Calculated Density (ρ)

2,000 kg/m³

2 g/cm³ (124.856 lb/ft³)

Specific Gravity 2 Relative to water (1.0)

Buoyancy in Water Sinks in Water Density ≥ 1,000 kg/m³

Density in lb/ft³ 124.856 lb/ft³ 16.691 lb/gal

Grams per cm³ 2 g/cm³ Equal to g/mL

Density (ρ)

2,000 kg/m³

2 g/cm³ (g/mL)

124.856 lb/ft³

16.691 lb/gal

Mass (m)

0.5 kg

500 g

1.102 lbs

17.63 oz

Volume (V)

0.00025 m³

0.25 L

250 cm³ (mL)

0.066 gal (US)

Understanding your calculation

Density equals mass divided by volume. Keep the mass and volume units consistent; unit prefixes change the numerical value.

A mass of 200 g occupying 100 cm³ has a density of 2 g/cm³.

Density varies with temperature, pressure and material composition. A calculated value does not by itself identify an unknown substance.