ABV Calculator

Find alcohol by volume from gravity readings.

ABV (%) 5.25

Formula: ABV ≈ (OG − FG) × 131.25

Step-by-step with your numbers:

1. Values used:

2. Original gravity = 1.05

3. Final gravity = 1.01

5. ABV = 5.25%

Did we solve your problem today?

Estimate the alcohol content of home-brewed beer or wine.

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.