Calories From Alcohol + Calories From Carbohydrates Approximating Beer Calories w/ ABV If you don’t know the beers original & final gravity, we can approximate the beers calories simply by multiplying the beers ABV % by a factor of ~2.5 and then multiplying that number by how many ounces the bottle holds. If you would like to see an addition, please make the request through the Facebook page or the contact form. So beer that has less alcohol will also have fewer calories. https://www.webmd.com/food-recipes/features/truth-about-beer Alcohol provides seven calories per gram. The lowest calorie beer is Bud Select, with just 55 calories. Home Beer: Making Sense of All the Choices Sortable Beer Calories, ABV, Efficiency Table Below are all of different brands and types of beer that this site was able to compile. This is also a lower alcohol beer. So just because you’re drinking beer that’s ‘advertised’ as being low in calories or … And, in general, darker beers tend to be heavier and provide more calories, but that's not always the case. The truth about low-calorie beers & low carb beer No matter how many carbohydrates are in your drink, the real culprit is the alcohol itself: the higher the percentage, the more calories it has.