This is something I’ve been meaning to do for a long time, but kept finding excuses to put off. It uses the simplified cubic polynomial derived in Refractometer FG Results. Please visit that post for more information.
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Refractometer CalculatorThis is something I’ve been meaning to do for a long time, but kept finding excuses to put off. It uses the simplified cubic polynomial derived in Refractometer FG Results. Please visit that post for more information. 6 comments to Refractometer CalculatorLeave a Reply |
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[...] (finally) written a PHP version of the basic FG calculation, so that people can use it without downloading the spreadsheet. [...]
Thanks for all the work with the Refractometer Calculator & putting a PHP version on your website. Very useful!
Jerry
[...] [...]
This is extremely helpful!! No more tedious math!! Thank you very much for putting this up!
Compared the last 5 brews I did with hydrometer and More beer refractometer program results. On all of them your OG specific gravity conversion from the brix reading was 2 (or so) sp gravity points lower than my hydrometer and the More beer values. These two were routinely within .5 sp gravity points. All the Fg calculations were spot on though!
Jack,
It sounds like the difference in OG you’re seeing could be due to the wort correction factor (1.04 by default). Are you applying a correction before using the MoreBeer sheet? If memory serves, it doesn’t have that capability.
At any rate, I’m glad it’s working out for you.
Sean