Generally, 12 oz. Beer, a 1 oz. Shot of hard liquor and 4 oz. of wine has about the same amount of alcohol. Not all wines have the similar alcohol content in them. White wines have less alcohol, while red wine contains more alcohol. Also, there are so many kinds of distilled spirits or hard liquors on the market, such as gin, bourbon, whiskey, vodka, and tequila. A serving is about 1 ounce, which is the size of a shot glass.
12 oz beer has 0.6 oz of alcohol per serving
1 oz of 80 proof liquor is 0.54 alcohol
4 oz of wine is 0.54 alcohol
The alcohol content is usually compared by 12 oz of beer, 5 oz of wine, and 1.5 oz of 80 proof liquor. Each of these drinks in these quantities contains approximately 0.6 alcohol per serving.