Alcohol by Volume (ABV) Calculator
This tool helps you find the Alcohol by Volume (ABV) of your brew based on change in specific gravity. If you took hydrometer readings before the fermentation started (Original Gravity: OG) and once it ended (Final Gravity: FG), you can use a formula to calculate the resulting alcohol.
Formula for calculating Alcohol by Volume (ABV, %)
ABV = (((OG - FG) * M(C2H6O) ) / FG ) / ρ(C2H6O)
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Common specific gravity ranges
Experimenting is fun and all, but most of the times we just follow recipes — or at least base our reasoning on existing recipes. The table below contains a number of popular brewing styles and their characteristics. You may click them to transfer their data to the calculator.
| Brewing Style | Original Gravity (OG) | Final Gravity (FG) | Alcohol by Volume (ABV) |
|---|---|---|---|
| Pilsener | 1.048 | 1.010 | 5.0 |
| American IPA | 1.070 | 1.010 | 7.9 |
| Cidre Brut | 1.045 | 0.995 | 6.7 |
| Cidre Doux | 1.050 | 1.025 | 3.2 |
| Weißbier | 1.045 | 1.014 | 4.1 |
| English Barleywine | 1.100 | 1.018 | 10.7 |
| Imperial Stout | 1.110 | 1.025 | 11.0 |