355mL*0.05 = 17.75mL 5.0% ABV times 355 ml of total liquid volume = 17.75ml of pure ethyl alcohol (ethanol).
If it is 3.9% abv, then 3.9% of any volume is alcohol:
380 ml × 3.9% = 380 ml × 3.9/100 = 14.82 ml alcohol.
5% of 355 ml = 5/100 × 355 ml = 17.75 ml of alcohol (= 1.775 units of alcohol, 1 unit = 10 ml)
If you have a 70cl bottle of whisky which is "40% alcohol by volume" it contains 28cl of alcohol.
51% typically means 51% by volume. So if you have a 100ml bottle of 51% alcohol, you have 51ml of pure alcohol inside the bottle, diluted to a final solution volume of 100ml.
50% alcohol Proof ÷ 2 = % alcohol
86 proof gin contains 43% alcohol by volume.
A bottle will usually state it's alcohol by volume (ABV) as "proof" . Proof is double what the percentage of alcohol is. So, a bottle of 60 proof spirits would be 30% alcohol by volume. The highest percentage alcohol in a spirit that I've seen is 151 proof, and that was a bottle of rum.
40% of 750ml = (40/100) * 750 = 300 mL.
It is the percentage of alcohol in an alcoholic beverage, expressed volumetrically. If you have a 1-liter bottle of liquor whose ABV is 40 percent, the bottle contains 400 ml of pure ethanol.
It is prepared from a special denatured alcohol solution and contains approximately 70 percent by volume of pure, concentrated ethanol (ethyl alcohol) or isopropanol (isopropyl alcohol), so approximately 35 mL in a 50mL bottle.
If the concentration of alcohol and water solution is 25 percent alcohol by volume, the volume of alcohol in a 200 solution is 50.
60ml.
Alcohol by Volume'