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Density Converter

Convert any density unit to another with this free density converter. It supports 7 units including kilograms per cubic meter, grams per cubic centimeter, grams per milliliter, kilograms per liter, pounds per cubic foot, pounds per cubic inch, and more. Pick a conversion below for a dedicated calculator, formula, and reference table. For example, 1 kg/m³ = 0.001 g/cm³.

All density conversions

Kilogram per Cubic Meter → Gram per Cubic CentimeterKilogram per Cubic Meter → Gram per MilliliterKilogram per Cubic Meter → Kilogram per LiterKilogram per Cubic Meter → Pound per Cubic FootKilogram per Cubic Meter → Pound per Cubic InchKilogram per Cubic Meter → Ounce per Cubic InchGram per Cubic Centimeter → Kilogram per Cubic MeterGram per Cubic Centimeter → Gram per MilliliterGram per Cubic Centimeter → Kilogram per LiterGram per Cubic Centimeter → Pound per Cubic FootGram per Cubic Centimeter → Pound per Cubic InchGram per Cubic Centimeter → Ounce per Cubic InchGram per Milliliter → Kilogram per Cubic MeterGram per Milliliter → Gram per Cubic CentimeterGram per Milliliter → Kilogram per LiterGram per Milliliter → Pound per Cubic FootGram per Milliliter → Pound per Cubic InchGram per Milliliter → Ounce per Cubic InchKilogram per Liter → Kilogram per Cubic MeterKilogram per Liter → Gram per Cubic CentimeterKilogram per Liter → Gram per MilliliterKilogram per Liter → Pound per Cubic FootKilogram per Liter → Pound per Cubic InchKilogram per Liter → Ounce per Cubic InchPound per Cubic Foot → Kilogram per Cubic MeterPound per Cubic Foot → Gram per Cubic CentimeterPound per Cubic Foot → Gram per MilliliterPound per Cubic Foot → Kilogram per LiterPound per Cubic Foot → Pound per Cubic InchPound per Cubic Foot → Ounce per Cubic InchPound per Cubic Inch → Kilogram per Cubic MeterPound per Cubic Inch → Gram per Cubic CentimeterPound per Cubic Inch → Gram per MilliliterPound per Cubic Inch → Kilogram per LiterPound per Cubic Inch → Pound per Cubic FootPound per Cubic Inch → Ounce per Cubic InchOunce per Cubic Inch → Kilogram per Cubic MeterOunce per Cubic Inch → Gram per Cubic CentimeterOunce per Cubic Inch → Gram per MilliliterOunce per Cubic Inch → Kilogram per LiterOunce per Cubic Inch → Pound per Cubic FootOunce per Cubic Inch → Pound per Cubic Inch

About these units

Kilogram per Cubic Meter (kg/m³)

Definition
Kilograms per cubic meter (kg/m³) is the SI unit of density, the mass of one cubic meter of a substance.
History
It follows directly from the SI base units of mass and length.
Current use
It is the standard density unit in science and engineering; water is about 1000 kg/m³.

Gram per Cubic Centimeter (g/cm³)

Definition
Grams per cubic centimeter (g/cm³) is a density unit equal to 1,000 kg/m³; water is about 1 g/cm³.
History
It became a convenient laboratory density unit in the CGS tradition.
Current use
It is widely used in chemistry and materials science to state densities.

Gram per Milliliter (g/mL)

Definition
Grams per milliliter (g/mL) is a density unit numerically equal to grams per cubic centimeter.
History
It arose from expressing density in everyday laboratory volume units.
Current use
It is common for liquids and solutions, where 1 mL equals 1 cm³.

Kilogram per Liter (kg/L)

Definition
Kilograms per liter (kg/L) is a density unit equal to 1,000 kg/m³, handy for liquids.
History
It pairs the kilogram with the liter for practical liquid density.
Current use
It is used for fuels, beverages, and other liquids; water is about 1 kg/L.

Pound per Cubic Foot (lb/ft³)

Definition
Pounds per cubic foot (lb/ft³) is an imperial density unit, the mass of one cubic foot of material.
History
It developed with imperial engineering and construction practice.
Current use
It rates the density of building materials, soils, and fluids in the US.

Pound per Cubic Inch (lb/in³)

Definition
Pounds per cubic inch (lb/in³) is a dense imperial unit used for metals and compact materials.
History
It comes from imperial engineering of dense materials.
Current use
It expresses the density of metals and alloys in US manufacturing.

Ounce per Cubic Inch (oz/in³)

Definition
Ounces per cubic inch (oz/in³) is an imperial density unit for lighter materials and small parts.
History
It is the lighter counterpart of pounds per cubic inch.
Current use
It states densities of plastics, foams, and light materials in US work.

Frequently asked questions

What density units can I convert?

This density converter supports 7 units: kilograms per cubic meter, grams per cubic centimeter, grams per milliliter, kilograms per liter, pounds per cubic foot, pounds per cubic inch, ounces per cubic inch. Select any pair below to open a dedicated converter with a formula and conversion table.

How accurate is the density converter?

Conversions use exact definitional factors, so results are accurate to the precision you need for science, engineering, and everyday use. Values are rounded only for display.

Is the density converter free?

Yes. Every density conversion is completely free, needs no sign-up, and runs entirely in your browser — your inputs never leave your device.

Free, private, and instant — every conversion runs in your browser.

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