Popular density conversions
Density units
Density is mass per unit volume. Water is about 1 g/cm³, or 1,000 kg/m³.
| Unit | Symbol | In kilograms per cubic meter | Definition |
|---|---|---|---|
| Kilogram per cubic meter | kg/m³ | 1 kg/m³ | |
| Gram per cubic centimeter | g/cm³ | 1,000 kg/m³ | |
| Gram per milliliter | g/mL | 1,000 kg/m³ | |
| Gram per liter | g/L | 1 kg/m³ | |
| Kilogram per liter | kg/L | 1,000 kg/m³ | |
| Pound per cubic foot | lb/ft³ | 16.01846337 kg/m³ | |
| Pound per cubic inch | lb/in³ | 27,679.90471 kg/m³ | |
| Pound per US gallon | lb/gal | 119.8264273 kg/m³ |
Calculate with density
The smart calculator does arithmetic across density units and picks a sensible unit for the answer. Try 500 g / 400 mL.
Questions and answers
Which density units can I convert?
All 8: kilograms per cubic meter, grams per cubic centimeter, grams per milliliter, grams per liter, kilograms per liter, pounds per cubic foot, pounds per cubic inch, pounds per US gallon.
What is the SI unit of density?
This converter uses the kilogram per cubic meter (kg/m³) as its base unit. Density is mass per unit volume. Water is about 1 g/cm³, or 1,000 kg/m³.
How precise are the results?
Factors are the exact legal definitions where one exists (an inch is exactly 2.54 cm, a pound exactly 0.45359237 kg). Results show 10 significant digits by default; the precision menu offers 4 to 15.
Does the density converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.