Volume Percent Calculator Formula

Understand the math behind the volume percent calculator. Each variable explained with a worked example.

Formulas Used

Volume Percent

volume_percent = (vol_solute / vol_solution) * 100

Variables

VariableDescriptionDefault
vol_soluteVolume of Solute(mL)30
vol_solutionVolume of Solution(mL)100

How It Works

How to Calculate Volume Percent

Formula

Volume % = (volume of solute / volume of solution) × 100

Commonly used for liquid-in-liquid solutions such as alcohol in water.

Worked Example

30 mL of ethanol in 100 mL of solution.

vol_solute = 30vol_solution = 100
  1. 01Volume % = (30 / 100) × 100
  2. 02Volume % = 30%

Ready to run the numbers?

Open Volume Percent Calculator