Homebrewing Beer Calculators

Free, no-signup calculators for Homebrewing Beer. Pick a tool below - every formula is explained on its page and every reference value is sourced.

Priming sugar for bottling by target CO2 volumes, batch size and fermentation temperature.

Correct hydrometer readings for sample temperature in C or F.

Convert refractometer Brix to specific gravity and Plato, and back.

Strike water temperature for the mash from grain temp, ratio and target.

Brewhouse efficiency from your grain bill, measured gravity and batch size.

Alcohol by volume from original and final gravity, with temperature correction.

Bitterness for multiple hop additions with the Tinseth formula.

Keg regulator PSI for any carbonation level and beer temperature, with a corn sugar alternative.

Yeast cells needed for your batch with viability loss by age and a starter size recommendation.

Calories, carbohydrates and ABV of any beer from original and final gravity and serving size.

Gypsum and calcium chloride additions for target calcium and a hoppy, balanced or malty SO4:Cl profile.

Beer color in SRM and EBC from grain bill weights and Lovibond ratings, with a color name.

Apparent and real attenuation from OG and FG, or the final gravity a target attenuation gives.