helgibelgi
Well-Known Member
Hi all
I was wondering about the formulas that ABV calculators use to give you the ABV of your beer. I'm really interested in this for some reason. I got the idea in my head that the gravity reading after fermentation is probably skewed, so that my ABV calculations may be wrong.
I have found tvo different versions of the formula that calculators use:
1) ABV = (og fg) * 131.25
2) ABV = (76.08 * (og-fg) / (1.775-og)) * (fg / 0.794)
Can anyone tell me what the constants represent? And/or explain to me how these formulas make sense?
Thank you
I was wondering about the formulas that ABV calculators use to give you the ABV of your beer. I'm really interested in this for some reason. I got the idea in my head that the gravity reading after fermentation is probably skewed, so that my ABV calculations may be wrong.
I have found tvo different versions of the formula that calculators use:
1) ABV = (og fg) * 131.25
2) ABV = (76.08 * (og-fg) / (1.775-og)) * (fg / 0.794)
Can anyone tell me what the constants represent? And/or explain to me how these formulas make sense?
Thank you