Homebrew ABV Calculator
Enter your hydrometer readings to get ABV and attenuation, and your batch size for a priming sugar estimate.
Result
- ABV
- 5.3%
- Apparent attenuation
- 80%
- Corn sugar for priming
- 117 g (4.1 oz)
Readings must be temperature corrected to your hydrometer's calibration. Priming amounts assume the beer finished fermenting around 68°F.
How this calculator works
ABV = (OG - FG) x 131.25. Apparent attenuation = (OG - FG) / (OG - 1). Corn sugar for priming is estimated at about 4 g per litre for each volume of CO2 added beyond the roughly 0.85 volumes already dissolved after fermentation.
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