Density Calculator
Calculate density, mass, or volume using the density formula rho = m/V. Given any two values, compute the third instantly.
Examples
Density of iron block (7874 kg, 1 m³)
Density = 7874 / 1 = 7874 kg/m³
- Solve for
- Density (rho = mass / volume)
- Mass (m)
- 7,874 kg
- Volume (V)
- 1 m³
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How It Works
Formula
Variables, symbols and units
- Density(kg/m³)
- Mass(kg)
- Volume(m³)
Calculation method explained
Choose what to solve for: density (given mass and volume), volume (given mass and density), or mass (given volume and density). Enter the two known values and the calculator computes the third.
Density (rho) is mass per unit volume. The calculator picks the algebraic form that matches your two known inputs and returns the missing quantity. For density mode it divides mass by volume; for volume mode it divides mass by density; for mass mode it multiplies volume by density. Stay in consistent SI units (kg and m³) to read the result in kg/m³.
References and source material
Examples
Density of iron block (7874 kg, 1 m³)Density (rho = mass / volume) · 7,874 kg → 7,874 kg/m³
Density = 7874 / 1 = 7874 kg/m³
- Solve for
- Density (rho = mass / volume)
- Mass (m)
- 7,874 kg
- Volume (V)
- 1 m³
- Density
- 7,874 kg/m³
Volume of 1000 kg of water (density 1000 kg/m³)Volume (V = mass / density) · 1,000 kg → 1 m³
Volume = 1000 / 1000 = 1 m³
- Solve for
- Volume (V = mass / density)
- Mass (m)
- 1,000 kg
- Density (ρ)
- 1,000 kg/m³
- Volume
- 1 m³
Mass of 1 m³ of mercury (density 13,600 kg/m³)Mass (m = volume x density) · 1 m³ → 29,982.867657 lb
Mass = 1 × 13,600 = 13,600 kg
- Solve for
- Mass (m = volume x density)
- Volume (V)
- 1 m³
- Density (ρ)
- 13,600 kg/m³
- Mass
- 29,982.867657 lb