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Density calculator

Density is mass divided by volume. The unit pickers mean you can mix pounds with litres and still get a clean answer.

Density
1000kg/m3
= Exact Density, mass and volume
Same density
1 g/cm3
Same density
62.428 lb/ft3
Specific gravity Against water at 20 degrees Celsius, 0.998207 g/cm3.
1.0018
Show the working
  1. Mass = 1000
  2. Volume = 1
  3. Same density = 1000 / (1 * 1000) = 1
  4. Density = 1 * 1000 = 1000
  5. Specific gravity = 1 / 0.998207 = 1.0018
  6. Same density = 1000 / 16.018463373960142 = 62.428

Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.

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    The formula

    • density = mass / volume
    • specific gravity = density / density of water

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