How many calories are in alcohol?

Pure ethanol contains 7.1 kcal per gram. A pint of lager (4% ABV) has about 182 kcal. A 175ml glass of wine has about 130 kcal. A 50ml double spirit has about 111 kcal.

Why does alcohol affect weight loss?

The body prioritises burning ethanol over fat. Alcohol is calorie-dense with no nutritional value, reduces inhibitions around food, and disrupts sleep quality which increases hunger hormones.

How many UK units is safe?

The UK CMOs recommend not regularly exceeding 14 units per week, spread across 3+ days. One unit = 10ml pure ethanol.

Are there low-calorie alcohol options?

Spirits with zero-cal mixers (55-65 kcal per 25ml), dry wines (120-130 kcal per 175ml), light beers (80-100 kcal per 330ml), and hard seltzers (80-100 kcal) are lower-calorie choices.

Lifestyle

Alcohol Calorie Calculator

Calculate calories in beer, wine, spirits, and cocktails. Track UK units and see the weekly calorie impact on your diet.

How Alcohol Calories Work

Ethanol Energy

7.1 kcal per gram

Nearly as calorie-dense as fat (9 kcal/g)

Formula

ml x ABV% x 0.789 x 7.1

Volume x strength x density x cal/g

Alcohol contains 7.1 kilocalories per gram of pure ethanol. A standard UK unit (10ml pure alcohol) contains approximately 56 kcal from ethanol alone. Mixers, sugar, and carbohydrates in beer add further calories.

Calories by Drink

Pint lager (4%)182 kcal

Wine glass (175ml)130 kcal

Double spirit (50ml)111 kcal

Cocktail (avg)180-300 kcal

Light beer (330ml)90 kcal

Cut Alcohol Calories

✓Spirits + zero-cal mixers
✓Dry wines over sweet
✓Alternate with water
✓Avoid sugary cocktails
✓Track weekly units (aim under 14)

Also Try

🔥Calorie Calculator 📉Calorie Deficit 💧Water Intake 🥗Macro Calculator

How Alcohol Sabotages Fat Loss

When you drink, your body prioritises metabolising ethanol over all other fuels. Fat oxidation essentially pauses until the alcohol is cleared. Combined with appetite stimulation and lowered inhibitions around food choices, even moderate drinking meaningfully slows fat loss progress.

The Hidden Calorie Problem

Most people significantly underestimate alcohol calories. Three pints and a glass of wine on Friday night adds over 700 kcal. Over a week, 2-3 drinking sessions can add 1,500-2,000 invisible calories that don't show up in food tracking apps.