Popular density conversions
- Kilograms per cubic meter to grams per cubic centimeter1 kg/m³ = 0.001 g/cm³
- Kilograms per cubic meter to pounds per cubic foot1 kg/m³ = 0.062428 lb/ft³
- Kilograms per cubic meter to pounds per gallon1 kg/m³ = 0.0083454 lb/gal
- Grams per cubic centimeter to kilograms per cubic meter1 g/cm³ = 1,000 kg/m³
- Grams per cubic centimeter to pounds per cubic foot1 g/cm³ = 62.428 lb/ft³
- Grams per cubic centimeter to pounds per gallon1 g/cm³ = 8.3454 lb/gal
- Pounds per cubic foot to kilograms per cubic meter1 lb/ft³ = 16.0185 kg/m³
- Pounds per cubic foot to grams per cubic centimeter1 lb/ft³ = 0.0160185 g/cm³
- Pounds per cubic foot to pounds per gallon1 lb/ft³ = 0.133681 lb/gal
- Pounds per gallon to kilograms per cubic meter1 lb/gal = 119.826 kg/m³
- Pounds per gallon to grams per cubic centimeter1 lb/gal = 0.119826 g/cm³
- Pounds per gallon to pounds per cubic foot1 lb/gal = 7.48052 lb/ft³
- Grams per milliliter to pounds per gallon1 g/mL = 8.3454 lb/gal
- Pounds per gallon to grams per milliliter1 lb/gal = 0.119826 g/mL
- Pounds per cubic inch to grams per cubic centimeter1 lb/in³ = 27.6799 g/cm³
- Grams per cubic centimeter to pounds per cubic inch1 g/cm³ = 0.0361273 lb/in³
About density units
Density is mass per unit volume. Water at 4 °C is very close to 1,000 kg/m³, which equals 1 g/cm³ or 1 kg/L — a handy check when converting. Fuel and chemical densities in the US are often given in pounds per gallon.
Density unit reference
| Unit | Symbol | Value in kg/m³ | System |
|---|---|---|---|
| Kilogram per cubic meter | kg/m³ | 1 kg/m³ | SI |
| Gram per cubic centimeter | g/cm³ | 1,000 kg/m³ | SI |
| Gram per milliliter | g/mL | 1,000 kg/m³ | Metric |
| Kilogram per liter | kg/L | 1,000 kg/m³ | Metric |
| Gram per liter | g/L | 1 kg/m³ | Metric |
| Tonne per cubic meter | t/m³ | 1,000 kg/m³ | Metric |
| Pound per cubic foot | lb/ft³ | 16.018463 kg/m³ | US customary |
| Pound per cubic inch | lb/in³ | 27,679.905 kg/m³ | US customary |
| Pound per US gallon | lb/gal | 119.82643 kg/m³ | US customary |
| Pound per imperial gallon | lb/gal (UK) | 99.776373 kg/m³ | Imperial |
| Ounce per cubic inch | oz/in³ | 1,729.994 kg/m³ | US customary |
| Ounce per US gallon | oz/gal | 7.4891517 kg/m³ | US customary |
| Slug per cubic foot | slug/ft³ | 515.37882 kg/m³ | US customary |
Frequently asked questions
What is the SI unit of density?
This converter uses the kilogram per cubic meter (kg/m³) as its reference unit; every other unit is defined relative to it.
How many density units can I convert?
13 units are supported here, across SI, Metric, US customary, Imperial systems. Every pair can be converted in both directions.
Does this density converter work offline?
Yes. Once the page has loaded, every calculation runs locally in your browser — nothing is sent to a server.