ABV Calculator

Calculate Alcohol By Volume from gravity readings

%

Gravity to ABV Calculator

Gravity before fermentation
Gravity after fermentation
Calculation method
Adjust for sample temperature
5.25%
Alcohol By Volume
4.18%
ABW (by weight)
80%
Apparent Attenuation
65%
Real Attenuation
~150
Calories (12oz)
Session (< 4%) Standard (4-6%) Strong (6-9%) Very Strong (9%+)
Standard Strength Beer
°P

Plato / Brix Converter

Calculation Formulas

Standard: ABV = (OG - FG) × 131.25
Advanced: ABV = (76.08 × (OG - FG) / (1.775 - OG)) × (FG / 0.794)

The standard formula provides a quick estimate suitable for most homebrewing purposes. The advanced formula accounts for the non-linear relationship between gravity and alcohol content, providing more accurate results especially for higher gravity beers.

Calculation History

No calculations yet

Beer Strength Reference

Category ABV Range Examples
Session < 4% Light Lager, Berliner Weisse, Mild Ale
Standard 4% - 6% Pilsner, Pale Ale, Wheat Beer, Porter
Strong 6% - 9% IPA, Belgian Dubbel, Bock, Stout
Very Strong 9% - 12% Imperial IPA, Belgian Tripel, Barleywine
Extreme 12%+ Imperial Stout, Eisbock, Quad