1. Convert to base units
kg/m3 = input value x input unit factor
Every supported density unit is stored as a factor relative to kilograms per cubic meter.
Mechanical unit converter
Density Unit Converter
Convert density units for materials, fluids, gases, structural data, thermodynamics, and engineering calculations.
Live density conversion
Convert density units
Enter a value, choose the starting unit, and select a target unit. The full density conversion table updates automatically.
Converted value
All units
Density conversion table
Compare the entered value across SI, metric, imperial, and engineering density units.
Common conversions
Useful density conversion factors
| Conversion | Factor | Typical use |
|---|---|---|
| g/cm3 to kg/m3 | kg/m3 = g/cm3 x 1000 | Materials and fluids |
| kg/m3 to g/cm3 | g/cm3 = kg/m3 / 1000 | Material property tables |
| lb/ft3 to kg/m3 | kg/m3 = lb/ft3 x 16.0184634 | Imperial to SI data |
| kg/m3 to lb/ft3 | lb/ft3 = kg/m3 x 0.06242796 | US customary reports |
| lb/in3 to kg/m3 | kg/m3 = lb/in3 x 27679.9047 | Dense material data |
| kg/L to kg/m3 | kg/m3 = kg/L x 1000 | Fluids and lab data |
How it works
Density conversion method
2. Convert to target units
target value = base value / target unit factor
The selected result and table values are calculated from the same base value.
3. Check precision
rounding depends on scale
Very small and very large values use compact scientific notation to stay readable.
FAQ
Density converter questions
How do you convert g/cm3 to kg/m3?
Multiply g/cm3 by 1000 to convert to kg/m3.
How do you convert kg/m3 to lb/ft3?
Multiply kg/m3 by about 0.06242796 to convert to lb/ft3.
Is g/cm3 the same as g/mL?
For volume conversion, 1 cm3 equals 1 mL, so g/cm3 and g/mL are numerically equivalent.
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