Calculate exact calories from alcoholic drinks including ethanol and mixer calories. Covers beer, wine, spirits, cocktails, and mixed drinks.
Alcohol contains about 7 calories per gram of pure ethanol — almost double carbohydrates (4 kcal/g) and just under fat (9 kcal/g). But the total calorie count of an alcoholic drink goes far beyond ethanol alone. Mixers, juices, syrups, cream, and residual sugars in beer and wine all add up, and those extras can matter as much as the alcohol itself.
A single large margarita can pack 300–500 calories, while a gin and diet tonic might contain just 100. Weekend social drinking can easily add up to a meaningful weekly calorie load, which is why people who track food carefully sometimes still stall.
This calculator estimates drink calories by converting beverage volume and ABV into ethanol grams, then adding mixer and residual sugar calories. It also includes a built-in common drinks database for quick lookups.
If you're tracking calories for weight loss, alcohol is one of the easiest sources to undercount. This page helps you compare drinks, see how mixers change the total, and estimate how a night of drinking fits into your daily or weekly calorie budget.
Ethanol Grams = Volume (mL) × (ABV / 100) × 0.789 Ethanol Calories = Ethanol Grams × 7 kcal/g Total Drink Calories = Ethanol Calories + Mixer Calories + Residual Sugar Calories Weekly Alcohol Calories = Drinks per Week × Total Drink Calories Note: 0.789 g/mL is the density of ethanol. ABV (Alcohol by Volume) is the percentage of pure ethanol in the beverage.
Result: 153 cal/drink, 918 cal/week
A standard 355 mL (12 oz) beer at 5% ABV: Ethanol = 355 × 0.05 × 0.789 = 14.0g. Ethanol calories = 14.0 × 7 = 98 kcal. Plus ~55 kcal from residual carbs in beer, totaling ~153 calories. At 6 drinks per week, that's 918 weekly calories — equivalent to roughly 0.12 kg (0.26 lb) of potential fat gain if over your calorie target.
Alcohol is absorbed quickly and its calories come from ethanol itself plus anything mixed into the drink. Pure ethanol is energy-dense, but the final calorie count depends on serving size, ABV, and whatever else is in the glass.
Regular drinking can make it harder to stay in a calorie deficit simply because the calories are easy to miss. Higher-calorie drinks also tend to come with lower satiety than food, so it's easier to overshoot your target without noticing.
A few drinks per week can add up to a meaningful weekly calorie load. That does not make alcohol uniquely fattening on its own, but it does mean it belongs in the same calorie budget as everything else you eat and drink.
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This worksheet estimates calories from alcoholic drinks by converting beverage volume and ABV into grams of ethanol using ethanol density (0.789 g/mL), then applying 7 kcal per gram for ethanol. It then adds any user-entered mixer calories and optional residual-sugar calories.
The result is a planning estimate, not a laboratory assay. Actual drink calories vary by brand, recipe, pour size, and whether the database entry reflects a standard serving or a custom pour.
Pure ethanol contains 7 calories per gram. This is almost twice the 4 kcal/g of carbohydrates or protein, but less than fat's 9 kcal/g. However, alcohol also has a thermic effect of about 15–20%, meaning your body burns some of those calories during metabolism. The net usable calories from ethanol are closer to 5.7 kcal/g, but most trackers use the full 7 kcal/g figure.
Beer calories come from both ethanol and residual carbohydrates (unfermented sugars). A light beer (4% ABV, low carbs) might have 100 calories, while a craft double IPA (8–10% ABV, high residual sugars) can have 300+ calories. Higher ABV and sweeter/maltier styles always mean more calories.
Yes, temporarily. Your body treats alcohol as a toxin and prioritizes metabolizing it above all other fuel sources. While processing alcohol (typically 1–2 hours per standard drink), fat oxidation drops by up to 73%. This doesn't mean alcohol calories are directly stored as fat, but it means any excess food calories consumed alongside alcohol are more likely to be stored.
The lowest-calorie choices are: vodka/gin/rum with soda water (~97 kcal), light beer (~100 kcal per 12 oz), dry white wine (~120 kcal per 5 oz), and champagne/prosecco (~90 kcal per 4 oz flute). Avoid cocktails with juice, cream, or simple syrup — a single piña colada can exceed 500 calories.
Budget for it in advance. If you know you'll drink 3 beers (450 kcal), reduce your food intake by 450 kcal that day. Some people reduce fat and carbs (since alcohol substitutes for both metabolically) while keeping protein high. Avoid "drunk eating" which is the real calorie bomb — plan a protein-rich meal before drinking and set snack boundaries.
Alcohol is technically a fourth macronutrient (7 kcal/g) that doesn't fit neatly into protein, carbs, or fat. Most macro-tracking apps count it separately. For practical purposes, you can trade alcohol calories against your fat or carb budget: 1g alcohol ≈ 1.75g carbs or ≈ 0.78g fat in caloric equivalent. Never trade against protein — keep protein intake constant.