Corrected FG
1.011
Refractometer / Brix / SG Calculator
Convert Brix and SG and correct post-fermentation refractometer readings to estimate true final gravity and ABV.
After-fermentation correction
Estimated ABV
6.30%
Estimated OG (from Brix)
1.059
Quick conversion result: 12.39 Brix / Plato
Formula references
This page uses the Sean Terrill refractometer correction polynomial for post-fermentation FG estimation. ABV is then estimated using(OG − corrected FG) × 131.25.
A refractometer does not replace a starting reading. SeeABV without a hydrometer for what an uncorrected Brix reading can and cannot tell you, and thehydrometer correction when you have a hydrometer sample off calibration temperature.