Density Converter

Convert density between kg/m³, g/cm³, lb/ft³, lb/gal and other units.

How to use the Density Converter

  1. Type the value you want to convert in the first box.
  2. Choose the unit you are converting from and the unit you want to convert to.
  3. Read the result instantly. Use the swap button to reverse the direction, or copy the result with one click.

Popular density conversions

ConversionResultFormula
Grams per cubic centimeter to kilograms per cubic meter1 g/cm³ = 1,000 kg/m³kilograms per cubic meter = grams per cubic centimeter × 1,000
Kilograms per cubic meter to grams per cubic centimeter1 kg/m³ = 0.001 g/cm³grams per cubic centimeter = kilograms per cubic meter ÷ 1,000
Kilograms per cubic meter to pounds per cubic foot1 kg/m³ = 0.062428 lb/ft³pounds per cubic foot = kilograms per cubic meter × 0.062427961
Pounds per cubic foot to kilograms per cubic meter1 lb/ft³ = 16.0185 kg/m³kilograms per cubic meter = pounds per cubic foot × 16.018463
Grams per cubic centimeter to pounds per cubic foot1 g/cm³ = 62.428 lb/ft³pounds per cubic foot = grams per cubic centimeter × 62.427961
Pounds per cubic foot to grams per cubic centimeter1 lb/ft³ = 0.0160185 g/cm³grams per cubic centimeter = pounds per cubic foot × 0.016018463

Supported density units

UnitSymbolEqual to
Kilogram per cubic meterkg/m³1 kg/m³
Gram per cubic centimeterg/cm³1,000 kg/m³
Gram per milliliterg/mL1,000 kg/m³
Gram per literg/L1 kg/m³
Kilogram per literkg/L1,000 kg/m³
Tonne per cubic metert/m³1,000 kg/m³
Pound per cubic footlb/ft³16.018463 kg/m³
Pound per cubic inchlb/in³27,679.905 kg/m³
Pound per US gallonlb/gal119.82643 kg/m³
Pound per imperial gallonlb/imp gal99.776373 kg/m³
Ounce per cubic inchoz/in³1,729.994 kg/m³
Slug per cubic footslug/ft³515.37882 kg/m³

Density basics

Density is mass divided by volume. Water has a density of almost exactly 1 g/cm³ (1,000 kg/m³) at 4 °C, which makes it a convenient reference: anything denser sinks, anything lighter floats.

Material g/cm³ kg/m³
Air (sea level) 0.0012 1.2
Ice 0.917 917
Water 1.00 1,000
Concrete 2.4 2,400
Aluminium 2.70 2,700
Steel 7.85 7,850
Gold 19.3 19,300

To convert g/cm³ to kg/m³, multiply by 1,000.

Frequently asked questions

How do I convert g/cm³ to kg/m³?

Multiply by 1,000. For example, 2.7 g/cm³ equals 2,700 kg/m³.

What is the density of water?

About 1 g/cm³, or 1,000 kg/m³, or 62.4 lb/ft³ at 4 °C.

How do I convert kg/m³ to lb/ft³?

Multiply by 0.062428. For example, 1,000 kg/m³ is about 62.43 lb/ft³.

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