Pick a drink or enter your own numbers — we'll calculate calories from alcohol using the same density-based formula nutritionists use, plus how many standard drinks that really is.
Picking a drink fills in the size and ABV below — adjust either if yours is different.
Enter your own size and ABV below — check the bottle or can label for exact ABV.
Estimates use the standard alcohol-density formula (ABV x volume x 0.789g/mL x 7 kcal/g). Actual calories vary by brand, especially for beer and mixed drinks with added sugar.
Pick a drink or enter your own numbers, then hit Calculate.
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Alcoholic drinks carry hidden calories that rarely show up on a menu or label — this calculator uses the same density-based formula nutritionists use to work out exactly how many calories come from the alcohol itself, plus any mixer.
The alcohol-calorie math itself is precise — it's the same density-based formula (volume x ABV x 0.789g/mL x 7kcal/g) used in nutrition science. What varies is the drink itself: two "12oz beers" from different brands can have meaningfully different ABV and residual sugar, so always check the label's actual ABV for the most accurate number.
Cocktails vary hugely depending on the mixer, sugar, and pour size — inventing a single "average cocktail" number would be more likely to mislead than help. Use the "Carbs from mixer" field with the mixer's actual sugar content if you know it, for a real total.
In the US, one standard drink contains about 14 grams of pure alcohol — roughly a 12oz regular beer, a 5oz glass of wine, or a 1.5oz shot of spirits. This calculator shows you the standard-drink equivalent for whatever you actually entered, which is often more or less than one drink depending on size and ABV.
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