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Old 12-24-2006, 02:36 PM   #1
kfgolfer
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Default how to calculate ABV??

How can you tell how much alcohol is in your beer? Does it have something to do with the S.G. and F.G??? Can someone please explain how I calculate this?

thanks. Oh, one other question that has been bothering me since I joined this forum... what does SWMBO and RDWHAHB stand for?????

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Old 12-24-2006, 02:47 PM   #2
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I keep this site bookmarked. It's a pretty handy calculator that can even take in the temperature differential. Just type in your O.G. and your F.G. and voila!

ABV Calculator

Merry Christmas!

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Old 12-24-2006, 03:12 PM   #3
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THANKS ED.... this is perfect..

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Old 12-24-2006, 03:33 PM   #4
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As to the 2nd question.
SWMBO = She Who Must Be Obeyed
RDWHAHB = Relax Don't Worry Have A Homebrew

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Old 12-24-2006, 04:41 PM   #5
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Start gravity-final gravity
7.69230769

Supposedly accurate to about .1
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Old 12-25-2006, 11:04 PM   #6
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Take a reading of your original gravity (O.G.) BEFORE adding yeast. Then take a reading of your final gravity (F.G.) at the end of fermentation. The difference is the alcohol content. Make sure fermentation is complete by taking readings for 3 or 4 days in a row. If it is at or close to your projected F.G., the beer is done. Example: O.G.9% F.G.3%=6% beer

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