Density Converter

A density converter switches mass per unit volume between common engineering and lab units. This free density unit conversion calculator handles kg/m³, g/cm³, g/mL, and lb/ft³ — for materials science, fluid mechanics, geotechnical specs, and chemistry.

Use it as a live density conversion chart or density conversion table — enter any value instead of reading a static poster. All density unit conversion runs locally; nothing is uploaded.

SI uses kg/m³; labs often quote g/cm³ (grams per cubic centimetre). The factor is exactly 1,000 because 1 g/cm³ = 1,000 kg/m³.

kg/m³ = g/cm³ × 1,000  ·  g/cm³ = kg/m³ ÷ 1,000

Searches like g cm3 to kg m3, convert g cm3 to kg m3, conversion from g cm3 to kg m3, density conversion g cm3 to kg m3, from g cm3 to kg m3, and g cm3 to kg m3 converter all use this multiply-by-1,000 step. Same for g cc to kg m3 / convert g cc to kg m3 — cc (cubic centimetre) equals cm³.

Material examples: water ≈ 1 g/cm³ = 1,000 kg/m³ · convert 1000kg m3 to g cm3 = 1 g/cm³ · convert 13.6 g cm3 to kg m3 (mercury) = 13,600 kg/m³ · convert 19.3 g cm3 to kg m3 (gold) = 19,300 kg/m³ · convert a density of 2.79 g cm3 to kg m3 (aluminium) = 2,790 kg/m³.

Reverse: convert kg m3 to g cm3, conversion from kg m3 to g cm3, conversion kg m3 to g cm3 — divide kg/m³ by 1,000.

US specs use lb/ft³. Convert kg m3 to lb ft3 / convert 900 kg m3 to lb ft3: 900 kg/m³ ≈ 56.2 lb/ft³ (× 0.062428). 1 lb/ft³ ≈ 16.02 kg/m³. Select lb/ft³ in the dropdown for imperial ↔ metric density.

Convert grams per cubic centimeters to kg m3 and convert from g cm3 to kg m3 are the forward direction (× 1,000). This tool acts as a density conversion calculator for any supported pair.

For liquids, 1 g/mL = 1 g/cm³ = 1,000 kg/m³ because 1 millilitre equals 1 cubic centimetre. G ml to kg m3, density g ml calculator, and g cc to kg m3 converter use the same factor for water-like fluids at room temperature.

Specific gravity (SG) is density relative to water: SG = ρ / ρ_water. Convert specific gravity to density / density to specific gravity converter / convert density to specific gravity: multiply SG by 1,000 to get kg/m³ (or SG equals g/cm³ numerically). SG 0.85 ≈ 850 kg/m³ (typical diesel).

Api to density conversion and api to density conversion table apply to petroleum (API gravity) — a non-linear industry scale, not a simple unit factor. Once you have kg/m³ from a datasheet, convert units here. Same for brix to density conversion / convert brix to density in sugar solutions.

Searches like cubic meter to kilogram, conversion cubic meter to kilogram, conversion from cubic meter to kg, kg to cubic meter, kilogram to cubic meter, m cube to kg converter, and kg cubic meter converter mix volume with mass. They require a material density:

mass (kg) = density (kg/m³) × volume (m³)  ·  volume = mass ÷ density

Example: convert cubic meter to kg sand — dry sand ≈ 1,600 kg/m³, so 1 m³ ≈ 1,600 kg. Convert sand density from g/cm³ to kg/m³ here first, then multiply by volume. Kg to liter calculator / convert kilograms to cubic meters: litres = kg ÷ (density in kg/L); water at 1,000 kg/m³ gives 1 kg ≈ 1 L.

Pure volume conversion (cm 3 to m 3) — no density involved — belongs on the Volume Converter. This page converts density units only; use mass = ρV once ρ is in kg/m³.

Bulk density conversion and foam density conversion refer to packed powders or cellular materials — the same kg/m³ ↔ g/cm³ factors apply to the quoted value; the number differs because air gaps or foam cells change effective density. Convert the stated bulk density unit here, then use it in mass–volume formulas.

Convert grams to cc without a substance density is incomplete — cc is volume, grams is mass. With known density (e.g. water 1 g/cm³), volume (mL) = grams ÷ (g/cm³).

Density temperature conversion calculator needs a thermal expansion coefficient — density changes with temperature (water is densest at 4°C). This tool converts between unit labels at a given numeric value; it does not adjust for temperature automatically.

This tool converts density units (mass per volume). It does not convert unrelated quantities:

• Convert density to viscosity, viscosity to density conversion, density to viscosity converter — dynamic viscosity (Pa·s, cP) is a separate property; see the Viscosity Converter.
• Ft lbs to kg m / convert lb ft to kg m — torque units (ft·lb vs N·m), not density.
• Convert kg h to m3 h with density — mass flow rate to volumetric flow rate needs ρ: m³/h = (kg/h) ÷ ρ.

For g cm3 to kg m3 converter, kg m3 to lb ft3, specific gravity, and liquid g/mL values, the dropdowns on this page cover standard NIST factors.