Actual Mbrew calculator interfaces on Mac and iPhone, in the selected language.
How to use it
In Mbrew, open Tools and select Refractometer.
Enter the following values using the units shown in the app: Refractometer reading, original reading.
Review Gravity conversion, then compare the inputs and result with your batch plan.
Interpreting the result
Select the correct mode for unfermented or fermented wort. After fermentation, include the original reading and wort correction factor; alcohol changes the relationship between refractive index and gravity.
Common questions
Can I calculate directly on this page?
No. Use the matching tool inside Mbrew. This page provides instructions and a screenshot.
