Free calculators for ABV, gravity, and refractometer readings. They run in your browser, with no sign-up.
Estimate ABV from hydrometer OG/FG or refractometer Brix, with formulas and worked examples.
Correct a refractometer reading taken during or after fermentation for the alcohol present.
Adjust a hydrometer reading for a sample that is warmer or cooler than the calibration temperature.
Convert Brix to specific gravity and back, with a conversion table.
