Density Converter
Density is mass per unit volume. The SI unit is the kilogram per cubic metre (kg/m³). Water at around 4 °C has a density close to 1,000 kg/m³ — the same as 1 g/cm³ or 1 kg/L — which makes it a convenient reference point.
1 kg/m³ = 0.001 g/cm³
How to convert kg/m³ to g/cm³
One kg/m³ equals 0.001 g/cm³, so multiply any value in kg/m³ by 0.001 to get g/cm³. To convert back, divide by 0.001 — or multiply by 1,000.
g/cm³ = kg/m³ × 0.001
Example: 25 kg/m³ × 0.001 = 0.025 g/cm³.
kg/m³ to g/cm³ table
| kg/m³ (kg/m³) | g/cm³ (g/cm³) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 75 | 0.075 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
g/cm³ to kg/m³ table
| g/cm³ (g/cm³) | kg/m³ (kg/m³) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 75 | 75,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
Density units at a glance
All 11 units this converter supports, each expressed in kg/m³ (kg/m³) and the other way round.
| Unit | Symbol | 1 unit in kg/m³ | 1 kg/m³ in unit |
|---|---|---|---|
| kg/m³ | kg/m³ | 1 | 1 |
| g/cm³ | g/cm³ | 1,000 | 0.001 |
| kg/L | kg/L | 1,000 | 0.001 |
| g/mL | g/mL | 1,000 | 0.001 |
| lb/ft³ | lb/ft³ | 16.01846337 | 0.06242796058 |
| lb/gal (US) | lb/gal | 119.8264273 | 0.008345404452 |
| lb/in³ | lb/in³ | 27,679.90471 | 0.000036127292 |
| g/L | g/L | 1 | 1 |
| Long Ton (UK)/yd³ | ton (UK)/yd³ | 1,328.939184 | 0.0007524798819 |
| oz/gal (US) | oz/gal | 7.489151707 | 0.1335264712 |
| oz/ft³ | oz/ft³ | 1.001153961 | 0.9988473692 |
Where density conversions are used
Choosing materials, fluid mechanics, buoyancy and shipping calculations, and chemistry.
Frequently asked questions
What is 1 kg/m³ in g/cm³?
1 kg/m³ (kg/m³) is 0.001 g/cm³ (g/cm³).
What is 1 g/cm³ in kg/m³?
1 g/cm³ (g/cm³) is 1,000 kg/m³ (kg/m³).
How do I convert kg/m³ to g/cm³?
Multiply the value in kg/m³ by 0.001. For example, 5 kg/m³ × 0.001 = 0.005 g/cm³. To go the other way, divide by 0.001.
How many units does the density converter support?
It converts between 11 units: kg/m³, g/cm³, kg/L, g/mL, lb/ft³, lb/gal (US), lb/in³, g/L, Long Ton (UK)/yd³, oz/gal (US), oz/ft³.
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Figures on this page are calculated with the same conversion factors as the converter above and shown to up to 10 significant figures. See our disclaimer before relying on a result in a professional or safety-critical context.