Free, accurate, no-signup tools for homebrewers and fermentation enthusiasts.
Calculate alcohol by volume from gravity readings (SG or Brix).
Calculate hop bitterness using the Tinseth method. Multiple hop additions.
Estimate beer color from your grain bill with visual preview.
Calculate priming sugar for bottle carbonation. Supports dextrose, sucrose, DME.
Calculate yeast cells needed for proper fermentation. Ale and lager rates.
Calculate your all-grain brewing efficiency from pre-boil gravity.
Correct hydrometer readings for temperature differences.
Correct Brix readings after fermentation for accurate final gravity.