Free Homebrewing Calculators
Free homebrewing calculators for every stage of your brew day. From recipe design to packaging — fast, accurate, no signup required.
Gravity & ABV
Calculate alcohol content, gravity conversions, attenuation and more for your homebrew.
10 calculators →
Hops
Calculate IBUs, hop utilisation, substitutions and additions for balanced bitterness.
11 calculators →
Malt & Grain
Design grain bills, calculate colour, efficiency and extract substitutions.
10 calculators →
Water & Mash
Calculate strike temperatures, water volumes, chemistry adjustments and mash profiles.
11 calculators →
Yeast
Calculate pitch rates, starters, viability and fermentation parameters for healthy yeast.
10 calculators →
Carbonation
Calculate priming sugar, forced carbonation pressures, line lengths and serving settings.
11 calculators →
Equipment
Size your brewing equipment, calculate boil-off rates, cooling times and system parameters.
10 calculators →
Recipe Design
Scale recipes, calculate boil volumes, pre-boil gravity and blend beers.
11 calculators →
Fermentation
Track fermentation timing, plan diacetyl rests, cold crashes and conditioning schedules.
9 calculators →
Packaging
Calculate bottles needed, keg fills, sanitiser amounts and packaging supplies.
8 calculators →
Mashing
Plan multi-step mash schedules, strike temperatures and timing for complex mash profiles.
1 calculators →
Recipe
Analyse recipe costs, ingredient breakdowns and batch economics for your homebrew.
1 calculators →
Bottling
Calculate bottle counts, caps, priming sugar, labels and case boxes for packaging your homebrew.
1 calculators →
Recipe Formulation
Calculate brewing costs, parti-gyle splits and recipe economics for your homebrew.
4 calculators →
Water Chemistry
Estimate mash pH, water adjustments and chemistry calculations for your brew water.
1 calculators →
Reference
Useful homebrewing reference guides, conversion tables and style data.
4 calculators →
BrewCalcs — Free Homebrewing Calculators
BrewCalcs offers 113+ free calculators across 16 categories. Every tool is fast, accurate, and requires no signup. Just enter your values and get instant results.
Browse all 113+ calculators or search above to find exactly what you need.