Alcohol by Volume (ABV) Calculator
Calculate the alcohol content (ABV) of your homebrew beer, wine, or mead from original and final gravity readings.
ABV Result
ABV Formula (Standard):
ABV = (OG - FG) × 131.25
ABV Formula (More Accurate):
ABV = (76.08 × (OG - FG) / (1.775 - OG)) × (FG / 0.794)
Where:
- OG = Original Gravity (before fermentation)
- FG = Final Gravity (after fermentation)
Gravity Reference:
- Water = 1.000
- Typical beer OG: 1.035 - 1.090
- Typical wine OG: 1.070 - 1.120
Common ABV Ranges:
- Light beer: 3-4%
- Regular beer: 4-6%
- Strong beer/IPA: 6-10%
- Wine: 11-15%
- Mead: 8-18%
Apparent Attenuation:
The percentage of sugars consumed by yeast.
Attenuation = (OG - FG) / (OG - 1.000) × 100%