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Convert between density units for physics and chemistry.
🧪 Density = mass ÷ volume. Water = 1000 kg/m³ = 1 g/cm³. Gold = 19,320 kg/m³.
Density measures how much mass fits in a given volume (mass ÷ volume). Water has a density of 1 g/cm³; gold is 19.3 g/cm³; air is just 0.0012 g/cm³.
The Density Converter converts density converterfrom one unit to another using the exact internationally defined conversion factors. Type a value, choose your source and target units, and the converted result is shown instantly — no waiting, no page reload.
Manual conversion is error-prone because it means memorizing ratios (how many feet in a meter, how many pints in a liter). This tool removes that friction: the conversion factor is built in, and the math is done to full precision with no rounding until the final displayed number.
Common uses: people reach for this tool when they need to look up a kg m3 to g cm3 converter, density units for physics, lb ft3 to kg m3 converter, or g per liter to kg cubic.
Browser-based tools like this one have a few real advantages over installed software or manual methods:
The Density Converter is based on the following formula:
ρ = m ÷ V 1 g/cm³ = 1000 kg/m³ 1 g/cm³ = 1 kg/L 1 g/cm³ = 62.428 lb/ft³
Variables: ρ = density m = mass in kg or g V = volume in m³ or cm³ kg/m³ = kilograms per cubic meter, the SI unit g/cm³ = grams per cubic centimeter (same as g/ml) lb/ft³ = pounds per cubic foot
Density is mass divided by volume. Water is the reference at about 1000 kg/m³ = 1 g/cm³. The factor of 1000 appears because 1 g = 0.001 kg while 1 cm³ = 0.000001 m³.
Worked example: Convert 1.25 g/cm³ (sugar syrup) to SI and imperial units: kg/m³ = 1.25 × 1000 = 1250 kg/m³ lb/ft³ = 1.25 × 62.428 = 78.035 lb/ft³ Reverse: 1250 kg/m³ ÷ 1000 = 1.25 g/cm³
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