Wondering how much alcohol is in your latest homebrew? Use our free ABV (Alcohol By Volume) Calculator to instantly calculate the ABV of your beer, mead, cider, or wine. Whether you measure gravity in Specific Gravity (SG), Degrees Plato, or Brix, this tool makes it fast and easy to convert your original and final gravity readings into a precise alcohol percentage.
How to Use the ABV Calculator
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Select your unit of measurement: SG, Plato, or Brix.
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Enter your Original Gravity (OG) and Final Gravity (FG).
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Click Calculate to view your estimated ABV.
Our calculator automatically converts units where needed and supports a wide range of brewing styles—from high-gravity imperial stouts to delicate dry meads and table wines.
Why Calculating ABV Matters
Accurately calculating ABV helps homebrewers:
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Understand the strength of their finished beverage
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Label products for competition or sharing
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Track batch efficiency and fermentation performance
Whether you’re brewing extract, all-grain, or wine, accurate ABV data is critical to quality control.
More Free Brewing Tools
Looking for other helpful brewing calculators? We offer tools to calculate:
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Priming sugar for carbonation
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Final gravity adjustments
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Strike and sparge water volumes
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IBU estimates
Stay tuned as we release even more!
Need Ingredients or Equipment?
Visit SoCal Brewing Supply for fresh hops, premium yeast, homebrewing starter kits, and everything else you need to brew your next batch. We ship fast and pack cold to preserve ingredient quality.