Alcohol Dilution Calculator
If you are asking how much water to add to dilute alcohol, this calculator gives you a fast estimate.
The Alcohol Dilution Calculator helps you estimate the final volume and the amount of water required when diluting alcohol from one ABV to another.
Formula
finalVolumeOz = (currentVolumeOz × currentAbv) ÷ targetAbvwaterToAddOz = finalVolumeOz − currentVolumeOz
Example
Diluting 16 oz at 40% ABV down to 25% ABV gives:
finalVolume = 25.6 ozwater to add = 9.6 oz