Free tools

Homebrew Calculators

Free, no nonsense calculators for home brewers, whatever you make: beer, wine, mead or cider. No sign up, no download, just the numbers you need.

Turn your original and final gravity into alcohol by volume and apparent attenuation.

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Priming Sugar Calculator

How much sugar to add at bottling to carbonate your beer or cider to the right level.

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Hydrometer Temperature Correction

Adjust a gravity reading taken warm or cold to the true specific gravity.

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Refractometer Correction

Turn Brix readings into corrected gravity and ABV, accounting for alcohol.

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Recipe & Batch Scaler

Scale any recipe up or down to a new batch size, ingredient by ingredient.

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More than a calculator

Demijohn Journal works out ABV automatically as you log readings, and keeps your recipes and fermentation history in one place. Free.

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