Originally Posted by Spinrathen
(OG-FG)x131.25 to be technical.
Ok, to be technical yes. But that formula breaks down a bit with a higher abv. I actually use a different formula all together, and it's more accurate. For this formula, you must use OG and FG in whole numbers though, i.e. 1.050 would be 50. The formula I use is:
((832+ OG) * (832 + FG) * (OG -FG)) / 5,500,000
It's a little more involved, but I think it's more accurate