Brew tools
Brewing Calculators
Free tools for brew day, the fermenter and planning a brewery.
Brew dayBrew Day PlannerPick your system and a recipe: water volumes, strike temperature, heat-up times and a step-by-step brew day.Open →Brew dayStrike water calculatorStrike temperature plus mash and sparge water volumes, for a mash tun or a full-volume all-in-one system.Open →Brew dayIBU calculatorBitterness from every hop addition, boil to whirlpool, with the BU:GU balance and the hops you need for a target IBU.Open →FermentationABV calculatorAlcohol by volume from your original and final gravity, with attenuation, calories and hydrometer temperature correction.Open →FermentationRefractometer calculatorBrix to gravity, true gravity and ABV during fermentation, and your wort correction factor.Open →FermentationPressure fermentation calculatorSpunding valve settings by beer style, when to raise the valve, and the pressure to carbonate after the cold crash.Open →PackagingCarbonation calculatorPriming sugar for bottling and the PSI to set on your keg, by beer style and temperature. With a printable carbonation chart.Open →KombuchaKombucha calculatorTea, sugar, starter and water for any batch, then the second-ferment sugar, carbonation pressure and alcohol.Open →RecipesRecipe scaling calculatorScale any recipe from 5 gallons to 1, 3 or 7 BBL, with efficiency, hop and yeast adjustments.Open →CostsCost per pint calculatorWhat a pint really costs you, your margin per batch, and how fast equipment pays for itself.Open →Planning a breweryBrewery startup cost calculatorWhat a 1–7 BBL brewery costs to open, the cash you need to survive the first year, and when it breaks even.Open →Planning a breweryBrewery capacity calculatorBarrels per year from your brewhouse and fermenters, what limits you, and how many tanks you need.Open →PowerElectric brewery calculatorAmps, breaker, wire and outlet for 120 V, 240 V, 208 V and 3-phase, plus heat-up times.Open →CoolingGlycol chiller sizingPick a glycol chiller for the number and size of fermenters you run.Open →
Built by brewers who make brewing equipment
We design electric brewing systems, unitanks and glycol cooling from homebrew to 1 BBL. These are the tools we use ourselves and the questions customers ask us most. They’re free, they work on your phone, and your numbers are saved in your browser so they’re there next time. Every calculator has a Copy link button so you can send your numbers to a partner, your electrician or us.