Fermentation calculators
Free tools for every stage of a batch, from planning sugar and honey to bottling.
ABV CalculatorAlcohol by volume from original and final gravity.Wine ABV CalculatorABV and potential alcohol for wine and fruit wine.Mead CalculatorHoney per gallon, starting gravity and mead ABV.Cider ABV CalculatorCider ABV, plus sugar to add to apple juice.Refractometer CalculatorBrix to gravity, corrected for alcohol mid-ferment.Hydrometer Temperature CorrectionCorrect a reading taken warmer or cooler than calibration.Chaptalization CalculatorSugar or honey needed to hit a target gravity or ABV.Priming Sugar CalculatorSugar to carbonate beer, cider or mead in the bottle.Sulfite (K-meta) CalculatorPotassium metabisulfite for a target free SO2 by pH.Back-sweetening CalculatorSugar or honey to sweeten a finished wine, mead or cider.Brix to SG ConverterConvert between specific gravity, Brix, Plato and Baumé.ABV Dilution CalculatorWater to add to reach a target ABV, or the ABV of a blend.