Density Calculator (Mass ÷ Volume)
Density Calculator (Mass ÷ Volume)
Density relates a substance's mass to the volume it occupies. Choose which quantity you want to solve for, enter the other two known values, and this calculator computes the missing one.
Density is one of the most useful identifying properties in chemistry precisely because it's constant for a given pure substance regardless of how much of it you have — 100 g of a liquid occupying 50 mL and 10 g occupying 5 mL are both exactly 2 g/mL. Pure water's density of 1.00 g/mL at standard conditions is the reference point most other liquids get compared against, which is why "denser than water" or "floats on water" are such common, intuitive shorthand in chemistry and everyday life alike.
- The core formula is density = mass ÷ volume, so 100 g of a liquid occupying 50 mL has a density of 2 g/mL.
- Density is a key identifying property of a substance - pure water is 1.00 g/mL, which is why the density of other liquids is often compared to it.
- This calculator uses grams and milliliters - for other unit combinations, convert your values first.
How do I calculate density?
Divide the mass of a substance by the volume it occupies: density = mass ÷ volume.
What is the density of 100 g of a liquid that occupies 50 mL?
100 g ÷ 50 mL = 2 g/mL.
Density Calculator (Mass ÷ Volume)
Density relates a substance's mass to the volume it occupies. Choose which quantity you want to solve for, enter the other two known values, and this calculator computes the missing one.
Density is one of the most useful identifying properties in chemistry precisely because it's constant for a given pure substance regardless of how much of it you have — 100 g of a liquid occupying 50 mL and 10 g occupying 5 mL are both exactly 2 g/mL. Pure water's density of 1.00 g/mL at standard conditions is the reference point most other liquids get compared against, which is why "denser than water" or "floats on water" are such common, intuitive shorthand in chemistry and everyday life alike.
- The core formula is density = mass ÷ volume, so 100 g of a liquid occupying 50 mL has a density of 2 g/mL.
- Density is a key identifying property of a substance - pure water is 1.00 g/mL, which is why the density of other liquids is often compared to it.
- This calculator uses grams and milliliters - for other unit combinations, convert your values first.
How do I calculate density?
Divide the mass of a substance by the volume it occupies: density = mass ÷ volume.
What is the density of 100 g of a liquid that occupies 50 mL?
100 g ÷ 50 mL = 2 g/mL.