Homebrew Calculators
Free brewing tools built by a real brewery. No account needed. Use them on brew day, bookmark them, come back any time.
ABV Calculator
Calculate alcohol by volume from your gravity readings. Includes apparent attenuation, real attenuation, and calories per serving.
Open CalculatorIBU Calculator
Calculate hop bitterness using Tinseth and Rager methods. Add multiple hop additions.
Coming SoonSRM/EBC Calculator
Predict your beer colour from the grain bill. See a real-time colour swatch.
Coming SoonStrike Water Calculator
Calculate the temperature and volume of strike water for your mash.
Coming SoonPriming Sugar Calculator
Work out how much priming sugar you need for bottle or keg carbonation.
Open CalculatorYeast Pitch Rate Calculator
Calculate how many yeast cells you need and whether you need a starter.
Coming SoonRefractometer Correction
Correct your refractometer FG reading to account for alcohol in fermented wort.
Coming SoonDilution Calculator
Calculate how to dilute or concentrate your wort to hit a target gravity.
Coming SoonBuilt by Brewers, for Brewers
These are the same calculations we use at Lacada Brewery in Portrush on the North Coast of Ireland. We are a community-owned co-operative with over 400 members, and we wanted to give something useful back to the brewing community. Every formula is verified against the science. Every tool is designed for use on your phone, mid-brew, with wet hands.
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