Free Homebrew Tools

All Brewing Tools

Free calculators and reference guides to level up your homebrew

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Brewing Calculators

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ABV Calculator

Calculate your beer's alcohol content from original and final gravity.

OG & FG InputInstant ResultABW too
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IBU Calculator

Estimate hop bitterness units for any number of hop additions.

TinsethRagerBU:GU Ratio
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Beer Color (SRM/EBC)

Predict the final colour of your beer from your full grain bill.

Morey FormulaLive Colour SwatchSRM & EBC
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Priming Sugar

Get exact grams of priming sugar for perfect carbonation at bottling.

SucroseDextroseDMEStyle Presets
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Hydrometer Correction

Correct your gravity reading for the sample temperature instantly.

Instant°C & °FASBC Formula
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Refractometer Correction

Get the true FG from Brix after fermentation begins — alcohol skews readings.

Sean TerrillSG & °PlatoEst. ABV
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Reference & Lookup

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Hop Substitution Guide

Search 60+ hop varieties, compare alpha acids and find the best substitutes.

60+ VarietiesAlpha & Beta AcidSubstitutes
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Yeast Strain Reference

Browse and compare yeast strains by attenuation, flocculation, and flavour.

AttenuationFlocculationFlavour Profile
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