Specific Gravity to Alcohol by Volume

Before Fermentation

Determines actual gravity, original extract, & potential alcohol before fermentation.

Wort Temperature (°F)
Original Gravity (OG)

Actual Specific Gravity:
Actual Original Extract: The percentage of solids (by weight) that have disolved in the wort
Potential Alcohol: Determines the maximum potential alcohol of the beer.

After Fermentation

Determines real attenuation, % Alcohol, & Calories once fermentation is complete.

Beer Temperature (°F)
Final Gravity (FG)

Actual Final Gravity:
Real Extract: The percentage of solids (by weight) that have disolved in the beer.
Real Attenuation: The percentage of solids (by weight) converted into alcohol.

Final Results

% Alcohol by Weight (% ABW):
% Alcohol by Volume (% ABV):
Total Calories per 12oz:

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