ABV Calculator (Alcohol by Volume)
Free ABV calculator: enter OG and FG for alcohol by volume via (OG − FG) × 131.25 plus a high-gravity formula, ABW, calories, and attenuation %.
ABV Calculator
ABV (standard formula)
5.25%
ABV (high-gravity formula)
5.34%
Apparent Attenuation
80%
ABW
4.18%
Calories per 12 oz (est.)
164
ℹ️ ABV = (OG − FG) × 131.25. Take both readings at your hydrometer’s calibration temperature — or correct them with the hydrometer temperature tool.