Density Converter
Convert density between kilograms per cubic meter, grams per cubic centimeter, pounds per cubic foot, and more. Calculates in your browser.
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About density conversions
Enter a value and choose the units to convert between. Each density unit is defined against a single base unit, so any pair lines up consistently, the table shows your value in every density unit at once.
What this does
A density converter changes a mass-per-volume value between units, kilograms per cubic meter, grams per liter, grams per cubic centimeter, grams per milliliter, kilograms per liter, and pounds per cubic foot, inch, or US gallon.
How to use it
- Enter a value and pick its unit.
- Choose the unit to convert to.
- Read the converted result instantly.
- Swap the units to reverse the conversion.
How it works
Each value is converted to kilograms per cubic meter (the SI unit) first, then to the target unit. Grams per cubic centimeter, grams per milliliter, and kilograms per liter are all the same size, each 1,000 times the kg/m³ value.
1 g/cm³ = 1000 kg/m³
Understanding your result
Water is a handy anchor: it is 1 g/cm³, or 1,000 kg/m³, so anything denser than 1 g/cm³ sinks in water and anything lighter floats. The pound-based units are common in US engineering, where 62.4 lb/ft³ is the density of water.
Example
Water is about 1 g/cm³, which equals 1,000 kg/m³ or roughly 62.4 lb/ft³.
Sources & methodology
Last updated .
Frequently asked questions
Are g/cm³, g/mL, and kg/L the same?
Yes, all three are identical in size, each equal to 1,000 kg/m³. They are just different ways of writing the same density.
What is the density of water?
Pure water is about 1 g/cm³, or 1,000 kg/m³, or roughly 62.4 lb/ft³. It is a common reference point for comparing densities.
Is my data stored?
No. Everything is calculated locally in your browser.
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