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Density Converter
Convert density between kg/m³, g/cm³, lb/ft³, lb/in³, g/mL, and oz/in³ with all units updating live from a single input. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example shown - 1 g/cm³ is the density of water.
kg/m³
g/cm³
lb/ft³
lb/in³
g/mL
oz/in³
How the density converter works
- Enter a density value and select which unit it's currently in.
- The tool converts that value to a common base unit, kg/m³.
- All six supported units are then shown at once, converted from that base value.
The method
Each unit has a fixed conversion factor to kg/m³ (e.g. 1 g/cm³ = 1000 kg/m³, 1 lb/ft³ ≈ 16.0185 kg/m³). Converting through this common base means every pair of units stays consistent no matter which one you start from.
FAQ
What units are supported?
kg/m³, g/cm³, lb/ft³, lb/in³, g/mL, and oz/in³ - covering the most common metric and imperial density units used in engineering, cooking, and material science.
Why is g/cm³ the same value as g/mL?
1 cubic centimeter is exactly 1 milliliter by definition, so a density expressed in g/cm³ and g/mL is numerically identical.
What is the density of water in these units?
Water is approximately 1 g/cm³, which equals 1000 kg/m³ or about 62.43 lb/ft³ - a useful reference point to sanity-check any conversion.
Does this run any calculation on a server?
No. All conversions happen locally in your browser using fixed conversion factors - nothing is uploaded.
How we compare
| Feature | Online Tool Store | UnitConverters.net | Google search converter |
|---|---|---|---|
| All units shown at once | ✓ | ✗ | ✗ |
| Six common density units covered | ✓ | ✓ | Limited |
| No ads | ✓ | ✗ | ✓ |
For a quick, all-in-one view of a density across six units, Density Converter saves the repeated single-pair lookups.