Priming Sugar Calculator

Calculate priming sugar for homebrew beer carbonation.

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Features

Multi-Sugar Support

Calculates for 6 different fermentables including Honey, Maple Syrup, and DME.

Temperature Correction

Automatically adjusts for residual CO2 based on your highest fermentation temp.

Style Guide Built-in

One-click presets for American Ales, Stouts, Lagers, Wheat Beers, and more.

Safety Limits

Warns you if your target CO2 exceeds standard glass bottle pressure ratings.

About Priming Sugar Calculator

The Priming Sugar Calculator is a precision tool designed for homebrewers who take carbonation seriously. Achieving the perfect "fizz" requires more than just guessing; it involves understanding Henry's Law and how temperature affects the residual CO2 already dissolved in your fermented beer. Before you even add sugar, your beer contains some CO2 generated during fermentation. The colder the fermentation temperature, the more CO2 stays in solution. This calculator mathematically accounts for that residual gas so you don't over-carbonate. It then calculates the exact weight of sugar needed to bridge the gap to your desired target volume. Whether you are bottling a low-carbonation British Ale or a highly effervescent Belgian Saison, this tool supports all major priming sugars including Corn Sugar (Dextrose), Table Sugar (Sucrose), Dry Malt Extract (DME), Honey, and Maple Syrup.

How to Use Priming Sugar Calculator

  • 1
    Measure Batch Volume

    Determine the exact volume of beer that will go into bottles (exclude trub/sediment loss).

  • 2
    Enter Max Temperature

    Input the highest temperature the beer reached after active fermentation began. This determines residual CO2.

  • 3
    Select Target Style

    Choose a target carbonation level (Volumes of CO2) or pick a beer style from the presets.

  • 4
    Choose Sugar

    Select your priming agent (usually Corn Sugar or Table Sugar).

  • 5
    Calculate & Weigh

    Use a kitchen scale to weigh the exact amount of sugar shown in grams.

  • 6
    Dissolve & Mix

    Boil the sugar in ~2 cups of water, cool it, and gently mix into the beer before bottling.

Priming Sugar Calculator | Homebrew Beer Carbonation Tool