Density Calculator
Calculate density from mass and volume, find mass or volume, or convert density units. Free, fast, and easy to use.
Calculate
Choose a calculation type, enter your values, and click Calculate Now to get instant results with step-by-step solutions.
Result
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Step-by-Step Solution
Chart
Complete User Guide
What is Density?
Density is a physical property that measures the mass per unit volume of a substance. It tells you how tightly packed the matter is in a given space. The formula is simple: Density = Mass ÷ Volume (ρ = m / V). Different materials have different densities — water is 1,000 kg/m³, aluminum is 2,700 kg/m³, and gold is 19,300 kg/m³.
All Formulas at a Glance
Density: ρ = m / V
Mass: m = ρ × V
Volume: V = m / ρ
4 Calculation Types
Calculate Density
ρ = m / V. Enter mass and volume to find density.
Calculate Mass
m = ρ × V. Enter density and volume to find mass.
Calculate Volume
V = m / ρ. Enter density and mass to find volume.
Convert Units
Convert density between kg/m³, g/cm³, g/L, lb/ft³, and lb/in³.
Common Material Densities
| Material | Density (kg/m³) |
|---|---|
| Air (at sea level) | 1.225 |
| Water | 1,000 |
| Aluminum | 2,700 |
| Iron / Steel | 7,870 |
| Copper | 8,960 |
| Lead | 11,340 |
| Gold | 19,300 |
Supported Units
Mass
- kg, g, mg
- lb, oz
- Metric tons (t)
Volume
- m³, cm³
- L, mL
- ft³, in³
Density
- kg/m³, g/cm³
- g/L
- lb/ft³, lb/in³
Important Notes
- All values must be positive (greater than zero).
- Density is temperature-dependent — values above are at standard conditions.
- The density chart compares your result to common materials (air, water, aluminum, iron, gold).
- 1 g/cm³ = 1,000 kg/m³ = 1 g/mL.