Brix Calculator — Ideal Sucrose Mass Model
Calculate sucrose mass and an optional pure sugar or water addition in a user-confirmed ideal sucrose/water mass model.
A QUICK WALKTHROUGH
How to use this tool
- Confirm that the inputs represent an ideal sucrose/water mass fraction.
- Enter current percentage and positive mass; optionally enter a target percentage.
- Calculate current masses and any finite adjustment, then copy or download the report.
Formula and units
Sucrose = M×b/100. If t>b, add sugar M×(t−b)/(100−t). If t<b, add water M×(b−t)/t. If equal, add0.
Scope
Use only an ideal sucrose/water mass model. Refractive °Bx of juice, alcohol or mixed solutes is not treated as actual sugar mass. No temperature or density correction is provided. Pure endpoints cannot be reached by a finite addition from an impure starting fraction.
Local processing
Inputs stay in your browser. The report includes inputs, formulas and scope.
GOOD TO KNOW
Common questions
Can I enter a juice or alcoholic refractometer reading?
No. This tool requires your confirmation of an ideal sucrose/water mass fraction and does not infer sugar from a mixed-sample refractive reading.