How many calories are in alcohol?
Pure alcohol carries about 7 calories per gram — nearly as much as fat — and most of a drink's calories come from the alcohol itself, with the rest from residual carbs (sugars in beer, wine and mixers).
How it's calculated
- Alcohol calories = volume (ml) × ABV/100 × 0.789 × 7.
- Carb calories = carbs (g) × 4.
- The total is the sum — pick a preset or enter your own pour.
Drinks add up fast and are easy to forget. Swoodie lets you log a drink in seconds and counts it in your daily total, so a night out doesn't quietly blow your target. Plan the day's food with the TDEE calculator.
Estimates only — please drink responsibly. Not medical advice.
Frequently asked questions
How many calories are in a beer?
A standard 355 ml (12 oz) beer at 5% ABV is roughly 150 calories — about 98 from alcohol and the rest from carbs. Lighter beers are lower; stronger or sweeter ones higher.
How do you calculate calories in alcohol?
Alcohol calories = volume in ml × ABV/100 × 0.789 × 7, plus carbs in grams × 4. This calculator does both and shows the split.
How many calories in a glass of wine?
A 150 ml glass of wine at ~13% ABV is roughly 120–130 calories, mostly from the alcohol. Enter your pour above for an exact estimate.