Brix to Specific Gravity Calculator
What this calculator does
The Brix to Specific Gravity calculator converts a Brix reading to specific gravity (SG). Brix measures the sugar content of a solution as a percentage by weight, and specific gravity is the ratio of the solution density to water density. Converting between the two is useful when working with different measurement instruments or when input data is needed for fermentation and ABV calculations.
How to use it
Enter the Brix value from your refractometer or other instrument. The calculator returns the equivalent specific gravity. For fermentation tracking, take readings at a consistent temperature and correct for temperature if your instrument requires it.
Calculation notes
The conversion uses established formulas relating Brix to specific gravity. The calculation assumes a pure sucrose solution at the standard temperature. Real-world fermentable substrates may contain other dissolved solids that affect the relationship between Brix and specific gravity. For precise work, use a calibrated hydrometer or refractometer and account for the specific characteristics of your substrate.
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Important disclaimer
ProofLogic is a calculation aid. Verify regulatory, tax, production, and reporting values against the official tables and requirements applicable to your operation. Results must be independently verified using calibrated instruments and approved gauging procedures before being relied upon for production, compliance, tax, labeling, reporting, inventory, safety, or operational decisions.