Select and enter the values to calculate the density and other related variables in the density formula.
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Calculate the density of an object or substance, where density is the mass per unit volume. This density calculator allows you to determine any of the three variables in the density equation by providing the other two.
✦ If volume V and mass M are known, calculate density using the formula below.
✦ If density ρ and mass M are known, calculate volume using:
✦ If volume V and density ρ are known, calculate mass using:
Density is defined as mass per unit volume:
ρ = M V
Where:
Density reflects how closely mass is packed in a given volume. Between two objects of the same volume, the one with higher density has more mass.
Density is a scalar quantity. Its SI unit is kg/m³. Other commonly used units include:
Additional conversions may be applied for specific contexts, such as mg/cm³ or lb/ft³.
| Other Units | Equivalent in SI Units (kg/m³) |
|---|---|
| Gram per cubic centimeter (g/cm³) | 1,000 |
| Gram per cubic meter (g/m³) | 0.001 |
| Kilogram per liter (kg/L) | 1,000 |
| Gram per liter (g/L) | 1 |
| Pound per cubic inch (lb/in³) | 27,680 |
| Pound per cubic foot (lb/ft³) | 16.02 |
| Pound per cubic yard (lb/yd³) | 0.5933 |
| Pound per gallon (US) (lb/gal) | 119.83 |
| Pound per gallon (UK) (lb/gal) | 99.78 |
| Ounce per cubic inch (oz/in³) | 1,730 |
| Ounce per cubic foot (oz/ft³) | 1.001 |
| Ounce per gallon (US) (oz/gal) | 7.489 |
| Ounce per gallon (UK) (oz/gal) | 6.236 |
| Ton (short) per cubic yard (US ton/yd³) | 1,186.60 |
| Ton (long) per cubic yard (UK ton/yd³) | 1,328.90 |
| Material | Density (kg/m³) |
|---|---|
| Earth's atmosphere at sea level | 1.2 |
| Water at standard temperature and pressure | 1,000 |
| The Earth | 5,515.3 |
| Iron | 7,874 |
| Copper | 8,950 |
| Tungsten | 19,250 |
| Gold | 19,300 |
| Platinum | 21,450 |
| Atomic nuclei | 2.3 × 10¹⁷ |
| Black hole | > 1 × 10¹⁸ |
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