Beer Calorie Calculator
Calories per serving from original and final gravity - alcohol plus residual carbohydrates.
- kcal
From alcohol-
From carbohydrates-
How it works
Calories are split into an alcohol term and a residual-carbohydrate term, each derived from original and final gravity, then scaled to your serving size.
Cal(alcohol) = 1881.22 · FG · (OG − FG) / (1.775 − OG)
Cal(carbs) = 3550 · FG · (0.1808·OG + 0.8192·FG − 1.0004)
Source: Brewer's Friend calorie calculator (per the hbd.org/ensmingr equations).
An estimate from gravity only - it counts alcohol and residual carbohydrates, not added sugars, lactose or adjuncts. Published calorie formulas differ by a few percent (ours sits at the low end, ~4% below some real-extract versions); treat it as a close guide, not a nutrition label.
Frequently asked questions
- How many calories are in my homebrew?
- Most of a beer's calories come from alcohol, with the rest from residual carbohydrates. Both are estimated from original and final gravity. A typical 5% beer is roughly 150–180 calories per 12 oz (355 ml).
- Does a drier beer have fewer calories?
- Not necessarily - drier means more sugar was converted to alcohol, and alcohol is calorie-dense. A highly attenuated beer can have similar or even more calories than a sweeter one at the same original gravity. Strength (OG) drives the total more than dryness.