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Alcohol, Extract, Attenuation, Calories

This tool estimates alcohol content, extract, attenuation and calories content of beer. Calculations are inspired by articles Brew by the Numbers: Add Up What’s in Your Beer, Michael L. Hall (Zymurgy, Summer 1995) and Kde se rodí vzorce - ALKOHOL, Petr Novotný (PIVAŘ 1/2017).

Notes:
  • Tool is available only for registered users.
  • Choose units.
  • Enter beer original and final gravity. Optionally enter beer volume (used to calculate calories content).
  • Tool estimates alcohol content (by volume, by weight), extract (original, apparent, real), attenuation (apparent, real) and calories content (contribution due to the residual sugar, alcohol and proteins) of beer.
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Enter value in a range between 1 and 50
Enter value in a range between 1 and 50

Alcohol (%)

Extract (Plato)

Attenuation (%)

Calories
Enter value in a range between 0 and 1000

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