Volume Percent Solution Calculator

Enter the solute and solvent volumes to find the volume percent of your solution.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

Volume percent (v/v%) expresses a solution's concentration as the volume of solute divided by the total volume of the solution, times 100 — distinct from weight/volume or mole fraction because both quantities being compared are volumes, which is convenient (and standard) whenever both the solute and the solvent are liquids that mix without a large volume change, such as ethanol in water.

It is the concentration unit printed on rubbing alcohol bottles (e.g., “70% isopropyl alcohol v/v”) and used throughout chemistry labs and cleaning-product formulation. This calculator takes the solute and solvent volumes, adds them for the total, and returns the v/v% so you can verify a mix or work backward from a target percentage to the volumes needed.

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