Inputs
Enter one primary reading. If both are entered, Brix is used as primary.
Winemaking
Brix, SG, and Potential ABV
Input either Brix or specific gravity to estimate equivalent readings and potential alcohol.
How to interpret the result
Use this calculator during harvest, crush, or fermentation planning when you need a quick relationship between Brix, specific gravity, and potential alcohol. It helps you sanity-check ripeness and expected alcohol before making cellar decisions.
- Hydrometer and refractometer readings should be temperature corrected where needed.
- Potential ABV is an estimate, not a lab-certified finished alcohol value.
- If fermentation has started, alcohol changes refractometer readings and requires a correction method.
How It Works
This calculator converts Brix and SG readings and estimates potential ABV.
- Enter either Brix or specific gravity reading as your primary measurement.
- The tool calculates corresponding sugar-scale value using standard approximations.
- Review potential ABV estimates for planning fermentation outcomes.
FAQ
Are these formulas exact?
They are standard approximations useful for planning, not laboratory certification.
Why are there two ABV estimates?
Different conversion assumptions can produce slightly different planning values.
Can temperature affect readings?
Yes. Correct hydrometer and refractometer readings for sample temperature where applicable.