kg/m³ to g/cm³ Converter
Convert density between kilograms per cubic meter (kg/m³) and grams per cubic centimeter (g/cm³) instantly, with formulas, examples, and reference values.
Kilograms per Cubic Meter ⇄ Grams per Cubic Centimeter
kg/m³ → g/cm³
Formula: g/cm³ = kg/m³ ÷ 1000
g/cm³ → kg/m³
Formula: kg/m³ = g/cm³ × 1000
Uses exact factor: 1 g/cm³ = 1000 kg/m³.
How to convert kg/m³ to g/cm³
Both kilograms per cubic meter (kg/m³) and grams per cubic centimeter (g/cm³) are density units. They differ only by powers of 10, so the conversion is very simple.
Conversion formulas
kg/m³ → g/cm³
\(\text{density}_{g/cm^3} = \dfrac{\text{density}_{kg/m^3}}{1000}\)
g/cm³ → kg/m³
\(\text{density}_{kg/m^3} = \text{density}_{g/cm^3} \times 1000\)
Why is the factor 1000?
- 1 g = 0.001 kg
- 1 cm = 0.01 m → \(1 \text{ cm}^3 = (0.01 \text{ m})^3 = 10^{-6} \text{ m}^3\)
So:
\(1 \text{ g/cm}^3 = \dfrac{0.001 \text{ kg}}{10^{-6} \text{ m}^3} = 1000 \text{ kg/m}^3\)
Therefore:
- 1 g/cm³ = 1000 kg/m³
- 1 kg/m³ = 0.001 g/cm³
Step-by-step example: 2500 kg/m³ to g/cm³
- Start with the value: 2500 kg/m³
- Divide by 1000: 2500 ÷ 1000 = 2.5
- Attach the new unit: 2.5 g/cm³
Step-by-step example: 0.8 g/cm³ to kg/m³
- Start with the value: 0.8 g/cm³
- Multiply by 1000: 0.8 × 1000 = 800
- Attach the new unit: 800 kg/m³
Common densities in kg/m³ and g/cm³
These approximate values are useful checks for your conversions:
| Material | kg/m³ | g/cm³ |
|---|---|---|
| Water (4 °C) | 1000 | 1.0 |
| Water (room temp.) | ≈ 997 | ≈ 0.997 |
| Air (sea level) | ≈ 1.2 | ≈ 0.0012 |
| Ice | ≈ 917 | ≈ 0.917 |
| Aluminum | ≈ 2700 | ≈ 2.7 |
| Steel | ≈ 7850 | ≈ 7.85 |
| Gold | ≈ 19300 | ≈ 19.3 |
FAQ
Is kg/m³ or g/cm³ more common?
In engineering and physics, kg/m³ is standard (SI unit). In chemistry, materials science, and lab work, g/cm³ is often preferred because values are typically between 0 and 20 and are easier to read.
How many g/cm³ is 1000 kg/m³?
Using the formula g/cm³ = kg/m³ ÷ 1000:
1000 kg/m³ ÷ 1000 = 1 g/cm³.
How many kg/m³ is 1.5 g/cm³?
Using the formula kg/m³ = g/cm³ × 1000:
1.5 g/cm³ × 1000 = 1500 kg/m³.
How can I avoid mistakes when converting?
- Remember: divide by 1000 when going from kg/m³ to g/cm³.
- Remember: multiply by 1000 when going from g/cm³ to kg/m³.
- Check against a known value, like water: 1000 kg/m³ ↔ 1 g/cm³.