added alcohol content from bourbon

[bg1414]

How much will 14 ounces of bourbon raise the overall alcohol content of my brew? I think i'm just having a brain fart. My beer is estimated 6.5% alcohol. Thanks

 

[WoodlandBrew]

If the bourbon is 80 proof (40% ABV) and it is diluted into 5 gallons of beer then:

(40% ABV * 14 oz) / (5 gallons * 128 oz per gallon + 14 oz) = 0.9% added ABV.