Volume to Density Calculator
Calculate density (ρ = m ÷ V) from any mass and volume unit. Choose mass in kg, g, mg, metric ton, pound, or ounce; choose volume in m³, L, mL, ft³, in³, or mm³ — the calculator converts to SI and returns density in kg/m³ and g/cm³.
Mass unit
Volume unit
ρ = mass ÷ volume (in kg/m³)
1,000
kg/m³- 1
Mass in kilograms
1 kg × 1 = 1 - 2
Volume in cubic metres
0.001 m3 × 1 = 0.001 - 3
Density ρ = mass ÷ volume
1 ÷ 0.001 = 1,000Result in kg/m³ — the SI unit of density.
How does this calculator work?
Density ρ = m ÷ V. Enter mass and volume in any combination of units — the calculator converts everything to kg and m³ before dividing, then shows density in kg/m³ and g/cm³ (1 g/cm³ = 1 000 kg/m³). Reference densities: water ≈ 1 000, aluminium ≈ 2 700, steel ≈ 7 900, gold ≈ 19 300 (all in kg/m³).
Formula
How this is calculated
Density is a material property that describes how much mass is packed into a unit of volume: ρ = m ÷ V. The SI unit is kg/m³. Water at 4 °C is about 1 000 kg/m³ (1 g/cm³), aluminium is about 2 700 kg/m³, iron about 7 874 kg/m³, and gold about 19 300 kg/m³. The formula applies to any homogeneous material where composition and density are uniform throughout the sample.
This calculator accepts mass in six units (kg, g, mg, metric ton, pound, ounce) and volume in six units (m³, L, mL/cm³, ft³, in³, mm³). It converts both to SI base units — kilograms and cubic metres — before dividing. Results appear in kg/m³ (SI) and g/cm³ (common in chemistry and materials science; numerically 1 000 times smaller).
The formula gives the average bulk density — if the material is porous (soil, foam, granular powder) the result is the apparent bulk density, not the density of the solid matrix. For gases, measure mass and volume under the same temperature and pressure conditions, or use the ideal gas law (PV = nRT) to find volume at a standard state before applying ρ = m/V.
Frequently asked questions
Water ≈ 1 000 kg/m³ (1 g/cm³); wood ≈ 400–900 kg/m³; aluminium ≈ 2 700 kg/m³; steel ≈ 7 800–8 000 kg/m³; gold ≈ 19 300 kg/m³; air at sea level ≈ 1.225 kg/m³. Anything less dense than water (< 1 000 kg/m³) floats.
For a regular shape, use the appropriate geometry formula. For an irregular solid, use Archimedes' displacement method: submerge the object in a graduated cylinder of water and read the rise in water level as the object's volume. This works for objects denser than water that do not dissolve or absorb water.
Yes — most materials expand when heated, increasing volume and reducing density. For solids and liquids the change is typically small (< 1% per 10 °C). For gases the effect is large: at constant pressure, density is inversely proportional to absolute temperature (ideal gas law). Always note the temperature and pressure at which mass and volume are measured.
Also known as
TG we-Calculate Editorial Team. (2026). Volume to Density Calculator [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/volume-to-density-calculator
TG we-Calculate Editorial Team. "Volume to Density Calculator." TG we-Calculate. 2026. https://we-calculate.com/calculator/volume-to-density-calculator.
TG we-Calculate Editorial Team, "Volume to Density Calculator," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/volume-to-density-calculator
@misc{wecalculate_volume_to_density_calculator, title = {Volume to Density Calculator}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/volume-to-density-calculator}}, year = {2026}, note = {TG we-Calculate} }
Did this calculator help you?