Frequently Asked Questions
What is density?
Density is the mass per unit volume of a substance, expressed as ρ = m/V. Common units include kg/m³, g/cm³, and g/mL.
What is the density of water?
The density of water is approximately 1 g/cm³ (or 1000 kg/m³) at 4°C.
How do you calculate density?
Density = mass ÷ volume. Divide the mass of an object by its volume.
What is specific gravity?
Specific gravity is the ratio of a substance's density to the density of water. It is dimensionless.
How do you find mass from density and volume?
Mass = density × volume. Rearranging the density formula: m = ρ × V.
What is the density of steel?
Steel has a density of approximately 7,850 kg/m³ (7.85 g/cm³).
Does temperature affect density?
Yes. Most substances expand when heated, decreasing their density. Water reaches maximum density at 4°C.
What units does this calculator use?
The calculator works with any consistent unit set. Use kg with m³, g with cm³, or lb with ft³.