ABV Calculator

Calculate alcohol content from original and final gravity

Gravity Values

Sample values pre-filled — adjust them and the result updates live.

5.3
% ABV
Alcohol by Volume
80.0%
Attenuation
186
kcal / 12oz
About the Calculation

Alcohol content is calculated from the difference between original and final gravity. The formula accounts for the fact that not all sugar converts to alcohol.

Formula:

ABV = (OG - FG) × 131.25

Typical values:

  • Session beer: 3-4% ABV
  • Standard beer: 4-6% ABV
  • Strong beer: 6-9% ABV
  • Imperial: 9-12%+ ABV

Or let AI handle it for you

Our AI recipe generator calculates original gravity, final gravity and ABV automatically — matched to your beer style.

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