Brew tools
Calculators for the numbers that come up on every brew day. Each one shows its formula, its source and a worked example, in US units with a metric switch.
ABV calculatorWork out ABV from OG and FG with the standard and high-gravity formulas, hydrometer temperature correction, a refractometer mode and standard drinks per serving.Priming sugar calculatorHow much corn sugar, table sugar or DME to prime homebrew: CO2 volumes by style, residual CO2 from the warmest fermentation temperature and a bottle-safety check.Keg carbonation chart and PSI calculatorKeg carbonation chart and calculator: regulator PSI by beer temperature and CO2 volumes, with an altitude correction and style ranges. Formula checked against BYO.IBU calculator (Tinseth)Calculate beer bitterness in IBU with the Tinseth formula: add hop additions by weight, alpha acid and boil time; see utilization per addition and the math.Beer color calculator (SRM, Morey)Estimate beer color from your grain bill: malt color units to SRM with the Morey formula, EBC conversion and an on-screen color preview.Strike water calculatorStrike water temperature and volume for your mash with Palmer's infusion equation, plus step infusions and an all-in-one mode. US units with metric switch.Brewing water chemistry calculatorBrewing water salt calculator: gypsum, calcium chloride, Epsom, baking soda, salt and chalk to ppm, SO4:Cl ratio, residual alkalinity and Campden for chloramine.Yeast pitch rate calculatorYeast pitch rate calculator: cells needed for ales and lagers by volume and gravity, dry yeast grams from the maker's dose, and liquid packs by viability.Dilution and boil-off calculatorDilute wort to a target gravity, and work out pre-boil volume from your boil-off rate, boil time and losses, with the pre-boil gravity for your target OG.Homebrew startup budget builderAdd up what it costs to start homebrewing with your own prices: 1-gallon kit, 5-gallon extract or a 120V or 240V all-in-one, bottling or kegging.Printable brew-day log and recipe sheetFree brew-day log: record recipe, water and salts, mash, gravities, yeast, fermentation temperatures, packaging and carbonation; save in your browser, CSV or print.