I was taught ABV= SG-FG x 131.
So 1.041-1.004= .037.037x131= 4.847 (4.85)
Been very accurate for me.
I use the hydrometer... Just find the subtracted number and roll that sucker over and reveal your prize! Sneezles61
This. Or 131.25 if you want to be absolutely precise.
I just Google ABV calculator and put in the numbers or skip it and drink it anyway.
I actually let BeerSmith2 calculate it for me.
I figure out ABV by taste Im preffy Affaraate
I'm thininn' yer awfully hosed... Hose! Sneezles61