This Alcohol Calories Calculator tells you out the number of calories in a drink due to the alcohol content.
This calculater uses the following formula to figure out the calories in an alcoholic drink based on the amount and alcohol percentage using the following value.
1 US ounce = 29.5735 milliliters (ml)
1 ml of alcohol weighs .8 grams
1 gram of alcohol = 7 calories
Here's an example:
12 ounces of 5% beer = 12 x 29.5735 = 354.882 ml
354.882 x .05 = 14.19536 grams of alcohol
14.19536 * 7 = 99.36752 calories from alcohol
Remember that this is ADDITION to any carbs or other macro nutrients
Guiness Stout, 12 ounces at 4.2% alcohol = 83.5 alcohol calories + 10.2g carbs = 124.3 total
Bud Light, 12 ounces at 4.2% alcohol = 83.5 alcohol calories + 6.5g carbs + 1g protein = 113.5 total