Food

ABV Calculator

Find alcohol by volume from gravity readings.

Calculated Output

ABV (%) 5.25

Formula: ABV ≈ (OG − FG) × 131.25

Step-by-Step Breakdown

1. Values used:

2. Original gravity = 1.05

3. Final gravity = 1.01

5. ABV = 5.25%

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The math behind it

ABV% ≈ (original gravity − final gravity) × 131.25.

OG 1.050, FG 1.010 → 5.25% ABV.

What is gravity?

A hydrometer reading of sugar density; it drops as yeast converts sugar to alcohol.