Beer Gravity Calculator
Calculate ABV, attenuation, and gravity conversions for homebrewing
Specific gravity before fermentation
Specific gravity after fermentation
Convert Brix to SG
Fermentation Results
ABV
5.25%
Alcohol by volume
Apparent Attenuation
80%
Sugar converted
Real Attenuation
65.1%
Actual fermentation
Calories
173
per 12oz serving
OG in Plato: 12.4°P
FG in Plato: 2.6°P
Alt ABV: 5.34%
Estimated Fermentables for 5 gallons
Dry Malt Extract
5.6 lbs
~45 PPG
Liquid Malt Extract
6.9 lbs
~36 PPG
Base Grain
6.8 lbs
~37 PPG (varies)
Brewing Tips
- Take hydrometer readings at 60°F (15.5°C) for accuracy
- Typical apparent attenuation ranges from 65-85%
- Higher mash temperatures = lower attenuation = sweeter beer
- FG should be stable for 2-3 days before bottling
- PPG = Points Per Pound per Gallon (fermentable potential)