Free Tools
Free, no-signup calculators for brewing better beer at home — using the standard brewing formulas, not guesswork.
ABV & Attenuation Calculator Enter your original and final gravity to get ABV, apparent attenuation, and a read on whether fermentation has actually finished. Open tool → Priming Sugar & Carbonation Calculator Enter your batch volume, beer temperature and target fizz to get the exact priming sugar to bottle-condition — corn sugar and table sugar, residual CO₂ accounted for. Open tool → Strike Water Temperature Calculator Enter your grain bill, water volume and temperatures to get the strike water temperature that lands your mash on target — standard infusion-mash maths. Open tool →