Density Calculator
Enter a mass and volume to calculate density in kilograms per cubic meter.
Density Calculator
Calculates the density of an object or substance from its mass and volume.
This calculator divides mass by volume using the standard density formula ρ = m/V, converting your volume input into cubic meters internally so the result is always reported in the standard SI unit of kilograms per cubic meter. It's a basic but widely used physics and materials-science calculation, useful for identifying unknown substances, checking material specifications, or working through buoyancy and material-science problems.
Example
- With the default values shown above, this calculator returns: Density ≈ 1000 kg/m³.
Frequently Asked Questions
What is the formula for density?
Density equals mass divided by volume (ρ = m/V); this calculator converts your entered volume to cubic meters internally so the result comes out in the standard SI unit of kg/m³.
How does density relate to whether something floats?
An object floats in a fluid if its density is lower than the fluid's density — for example, objects less dense than water (about 1000 kg/m³) will float in it.
Sources
- Standard formula, publicly documented method