Converters

Density Converter

Convert mass density accurately between kg/m³, g/cm³, g/mL, kg/L, g/L, lb/ft³ and lb/in³ using fixed unit definitions.

Example: a density of 1.2 g/cm³. How many kg/m³ is that?

Density

From To

Result 1,200 kg/m³ 1.2 g/cm³ = 1,200 kg/m³

One-unit equivalent 1 g/cm³ = 1,000 kg/m³ A quick way to understand the relationship between the two units.

✓ Conversion factors match data and definitions from the National Institute of Standards and Technology (NIST)

How is the conversion calculated?

The value is converted to kilograms per cubic meter first, then to the requested density unit using fixed conversion relationships.

This calculation runs in your browser. Your values are not sent to our server.

How it works

Enter the density value, then choose the current unit and the unit you want to convert to.
Example: 1.2 g/cm³ equals exactly 1,200 kg/m³.
Use the swap button to reverse the units without re-entering the value.
The converter uses kg/m³, the SI unit of mass density, as its internal reference.
Metric relationships such as 1 g/cm³ = 1,000 kg/m³ are exact. Imperial conversions use the exact international pound, foot and inch definitions.

How many kg/m³ are in 1 g/cm³?

1 g/cm³ equals exactly 1,000 kg/m³.

Is 1 g/mL the same density as 1 g/cm³?

Yes. Since 1 mL equals exactly 1 cm³, 1 g/mL and 1 g/cm³ are numerically identical.

How many kg/m³ are in 1 lb/ft³?

1 lb/ft³ is approximately 16.01846337396014 kg/m³ using the exact international pound and foot definitions.

Is density allowed to be negative?

No. Mass density is mass divided by volume, so this converter rejects negative density values.

Does this tool calculate density from mass and volume?

No. This page converts an existing density value between units. A separate density calculator can calculate density from mass and volume.