Density Converter

Convert kg/m³, g/cm³, kg/L, lb/ft³ and lb/gal.

1 g/cm³=1,000 kg/m³
1 g/cm³ = 1,000 kg/m³ 1 kg/m³ = 0.001 g/cm³

All conversions

1,000
Kilogram per cubic meter kg/m³
1
Gram per cubic centimeter g/cm³
1
Kilogram per liter kg/L
1,000
Gram per liter g/L
1,000,000
Milligram per liter mg/L
62.427961
Pound per cubic foot lb/ft³
0.036127292
Pound per cubic inch lb/in³
8.3454045
Pound per US gallon lb/gal
0.57803667
Ounce per cubic inch oz/in³

Common density conversions

g/cm³ to kg/m³
g/cm³kg/m³
11,000
55,000
1010,000
2525,000
5050,000
100100,000
10001,000,000
kg/m³ to lb/ft³
kg/m³lb/ft³
10.062427961
50.3121398
100.62427961
251.560699
503.121398
1006.2427961
100062.427961
lb/ft³ to kg/m³
lb/ft³kg/m³
116.018463
580.092317
10160.18463
25400.46158
50800.92317
1001,601.8463
100016,018.463
lb/gal to kg/L
lb/galkg/L
10.11982643
50.59913214
101.1982643
252.9956607
505.9913214
10011.982643
1000119.82643

Unit reference

UnitSymbolEquals
Kilogram per cubic meterkg/m³base unit
Gram per cubic centimeterg/cm³1 g/cm³ = 1,000 kg/m³
Kilogram per literkg/L1 kg/L = 1,000 kg/m³
Gram per literg/L1 g/L = 1 kg/m³
Milligram per litermg/L1 mg/L = 0.001 kg/m³
Pound per cubic footlb/ft³1 lb/ft³ = 16.01846337 kg/m³
Pound per cubic inchlb/in³1 lb/in³ = 27,679.90471 kg/m³
Pound per US gallonlb/gal1 lb/gal = 119.8264273 kg/m³
Ounce per cubic inchoz/in³1 oz/in³ = 1,729.994044 kg/m³

About this density converter

Convert density - mass per unit volume - between metric and imperial units. Note that g/cm³, g/mL and kg/L are numerically identical (water is about 1 g/cm³ at 4 °C), which is why both g/cm³ and kg/L are listed here.

To turn a volume into a mass, multiply by density; use the volume and weight converters for the other numbers.

Materials & engineering

Compare metals, plastics and fluids given in g/cm³, kg/m³ or lb/ft³.

Cooking & brewing

Convert ingredient and liquid densities when scaling recipes by weight or volume.

Shipping & logistics

Estimate cargo mass from volume using density in kg/m³ or lb/ft³.

Tips for accurate results

Water as a reference

Fresh water is about 1,000 kg/m³ = 1 g/cm³ = 62.43 lb/ft³ at 4 °C. Values above are denser and sink; values below float.

Temperature matters

Density changes with temperature and pressure. Conversions here are exact between units but do not adjust for conditions.

Frequently asked questions

How do I convert g/cm³ to kg/m³?

Multiply by 1,000. For example, 7.85 g/cm³ (steel) is 7,850 kg/m³.

How do I convert lb/ft³ to kg/m³?

Multiply pounds per cubic foot by 16.01846. For example, 62.4 lb/ft³ ≈ 999.5 kg/m³.

Is g/mL the same as g/cm³?

Yes, because 1 milliliter is exactly 1 cubic centimeter.

What is the density of water?

About 1,000 kg/m³ (1 g/cm³) at 4 °C; it is slightly lower at higher temperatures.

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