Convert density measurements between kg/m³, g/cm³, kg/L, lb/ft³ and lb/gal (US).
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Result
0.001 g/cm³
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This tool converts between density units using fixed conversion factors, for example, 1 gram per cubic centimeter equals 1,000 kilograms per cubic meter, and is also numerically equal to 1 kilogram per liter, both express the density of water at 4°C. Enter a value in any supported unit and it's converted to all others using these standard ratios.
Kilograms per cubic meter is the SI standard, common in engineering and materials specifications. Grams per cubic centimeter (equivalently, kilograms per liter) is common for liquids and lab work. Pounds per cubic foot and pounds per gallon are common in US construction, aggregate and fuel contexts.
Converting water's density, 1,000 kg/m³, to pounds per cubic foot gives approximately 62.43 lb/ft³, the commonly cited imperial reference figure for water density used in US engineering and construction contexts.
Confusing density (mass per unit volume) with specific gravity (a dimensionless ratio to water's density), a material with specific gravity 2.5 has a density of about 2,500 kg/m³, not 2.5 kg/m³, forgetting the water-density multiplier is a common source of error.
Mixing up US and other regional definitions of 'gallon' when converting to or from lb/gal, this converter's lb/gal unit is specifically pounds per US gallon, not the larger UK imperial gallon.
Forgetting that density changes with temperature, the water density figures used here (1,000 kg/m³) are specifically for water at 4°C, its densest point, water at other temperatures is measurably less dense.
Multiply grams per cubic centimeter by 1,000 to get kilograms per cubic meter, or use this converter for an instant result.
Water's density is approximately 1,000 kg/m³, 1 g/cm³, or 1 kg/L at 4°C, one of the most commonly used reference densities.
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