MASS DENSITY WORKSPACE

Density Converter

Convert mass density among kilograms per cubic metre, grams per millilitre, pounds per cubic foot, and other labelled units.

Reviewed reference factorsValues stay in this browser tabNon-negative mass density only; temperature, pressure, composition, and specific gravity are not estimated.

Conversion input

Convert a known mass density

Enter density measured under known conditions and choose its exact mass-per-volume unit. US gallon is labelled explicitly where it appears.

Find a unit6 / 6

Filter by unit name, symbol, or code. Your current selections remain available.

Known value0 / 80

Enter a non-negative mass density. Keep the material state, temperature, pressure, and source volume convention with the result.

Convert from

Choose the unit attached to the value you entered.

Convert to

Choose the unit required for your report, estimate, or comparison.

Displayed precision

Choose the maximum decimal places shown. This does not increase source accuracy.

Conversion runs locally after the active reference catalogue loads.

Conversion result

Your checked conversion appears here

Load the 1000 kg/m3 example or enter a density to compare available mass-per-volume units.

What this tool delivers

Mass density converted on one volumetric basis

The workspace converts an existing density and does not infer it from separate mass, dimensions, or material identity.

What it converts

Converts one mass-density magnitude among common SI, laboratory, US customary, and trade units.

What you provide

A non-negative density, its precise source unit and conditions, a destination unit, and suitable precision.

What you receive

A selected result, a kilogram-per-cubic-metre equation, all equivalents, and a downloadable CSV.

Calculation method

How density units use kilograms per cubic metre

The source density is multiplied by its kilogram-per-cubic-metre factor and divided by the destination factor. Both the mass and volume components are included in each reviewed compound-unit factor.

Review the NIST density conversion factors

Quick answers

Density Converter questions

Is density the same as specific gravity?

No. Density has units of mass per volume. Specific gravity is a dimensionless ratio comparing a substance with a stated reference density, commonly water for liquids. Converting density units does not calculate specific gravity unless the correct reference value and its temperature or other conditions are supplied separately.

Why should temperature and pressure stay with the result?

Density can change when a material expands, contracts, compresses, changes composition, or changes phase. The converter changes only units and assumes the supplied density already applies at the intended conditions. For gases and precision liquid work, verify temperature, pressure, concentration, and the authoritative property source before use.

Which gallon is used for pounds per gallon?

The available unit is explicitly pounds per US gallon. An Imperial gallon has a different volume and would produce a different density value. Do not use the US-gallon result for an unlabeled or Imperial source; first confirm the volume convention from the specification, instrument, supplier, or governing standard.