Brix to Specific Gravity Calculator (and Back)
Enter a Brix reading or a specific gravity.
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Brix to Specific Gravity Calculator (and Back) by TheCalcTools
How the Brix to Specific Gravity Calculator (and Back) works
Brix measures dissolved sugar as grams per 100 g of solution; specific gravity is density relative to water. The conversions use widely used polynomial fits: SG = 1 + Brix ÷ (258.6 − Brix ÷ 258.2 × 227.1), and the cubic fit for the reverse.
Potential alcohol assumes all the sugar ferments to a final gravity of 1.000, which dry wines approach; beers finish higher.
The formula
Worked example
Using the default values shown in the calculator:
| Convert | Brix to specific gravity |
|---|---|
| Degrees Brix | 22 |
| Specific gravity | 1.09 |
- 22 °Brix is a specific gravity of 1.0920, for a potential 12.1% ABV.
Result:
| Specific gravity | 1.0920 |
|---|---|
| Degrees Brix | 22.00 |
| Gravity points | 92.0 |
| Potential ABV if fermented to 1.000 | 12.1% |
Frequently asked questions
What Brix are wine grapes picked at?
Often 20 to 26 °Brix, depending on the style.
Sources and further reading
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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.