Home Brew Batch ABV Calculator
Enter your original gravity (OG) and final gravity (FG) readings to calculate the alcohol by volume of your batch, using the standard brewing industry formula favored by homebrewers.
Alcohol By Volume
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Original Gravity—
Final Gravity—
Total Alcohol (gallons)—
About this calculator
Calculate the alcohol by volume (ABV) of your homebrewed beer, wine, or mead using original and final gravity readings.
Frequently Asked Questions
What's the difference between standard and advanced formulas?
The standard formula is accurate for most beers under 8% ABV. The advanced formula corrects for the non-linear behavior of gravity readings in higher-alcohol brews like barleywines or meads.
What if my final gravity reading seems too high?
Fermentation may not be complete. Wait a few more days and take another reading before calculating final ABV.
Does this work for wine and mead?
Yes, the gravity-based ABV formula applies to any fermented beverage as long as you have accurate OG and FG hydrometer readings.