Alcohol & ABV

Potential Alcohol Calculator

Estimate a theoretical alcohol potential from starting gravity, assuming the fermentable extract ferments substantially dry.

Enter your measurements

Estimate the alcohol potential represented by a starting specific-gravity reading.

Good to know

Will the finished drink reach this potential?

Not necessarily. Yeast health, fermentability, temperature, nutrients, and alcohol tolerance affect attenuation.

Can I use Brix?

This version expects specific gravity. Convert a Brix reading to SG first, accounting for whether alcohol is already present.

Keep exploring

Guide

Learn what hydrometer readings can tell you about fermentation strength, and where common homebrew estimates fall short.

Guide

A practical introduction to gravity readings, hydrometers, temperature correction, and fermentation progress.

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Estimate alcohol by volume from original and final specific gravity readings.

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Estimate the water needed to bring a measured alcohol solution to a target strength.

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Convert alcohol by volume to US proof and back.

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Convert an approximate sucrose Brix reading to specific gravity.