How many calories are in a beer?
A pint (568 ml, 20 fl oz) of 4% lager is about 180 kcal, and a 330 ml (11 fl oz) bottle of 5% is about 125. Almost all of that is the alcohol itself, so only two things move the number much: volume and strength.
Per portion
| Portion | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Half pint, 284 ml, 4% | ~90 kcal | 0.8 g | 7 g | 0 g |
| Bottle, 330 ml, 5% | ~125 kcal | 1 g | 8 g | 0 g |
| Can, 440 ml, 4% | ~140 kcal | 1.3 g | 11 g | 0 g |
| Pint, 568 ml, 4% | ~180 kcal | 1.7 g | 14 g | 0 g |
| Pint, 568 ml, 5% | ~215 kcal | 1.7 g | 14 g | 0 g |
| Pint, 568 ml, 6.5% IPA | ~280 kcal | 2 g | 18 g | 0 g |
What changes the number
Strength, more than anything else. Alcohol carries 7 kcal per gram, second only to fat at 9 and nearly double the 4 in protein or carbohydrate. Each extra percentage point of ABV adds about 31 kcal to a pint and 18 to a 330 ml bottle.
| ABV | Pint, 568 ml | Bottle, 330 ml |
|---|---|---|
| 3.5%, session ale | ~160 kcal | ~95 kcal |
| 4.0%, standard lager | ~180 kcal | ~105 kcal |
| 4.5%, bitter or pale ale | ~195 kcal | ~115 kcal |
| 5.0%, premium lager | ~215 kcal | ~125 kcal |
| 6.5%, IPA | ~280 kcal | ~160 kcal |
| 8.0%, imperial stout | 320–380 kcal | 190–220 kcal |
Residual sugar does the rest: 2–3 g of carbohydrate per 100 ml in most beer, nearer 1 g in dry and low-carb versions, higher in sweet stouts. Across a pint that is a 20–40 kcal spread.
Colour changes nothing. A pint of 4.2% stout is around 200 kcal because it is 4.2%, not because it is dark. Alcohol-free beer at 0.5% or less runs roughly 60–130 kcal a pint: the alcohol goes, the malt stays. “Light” means lower alcohol in some markets and lower carbohydrate in others, and the panel is printed per 100 ml rather than per can — the usual food label trap.
Where it fits in a deficit
Beer is poor value per calorie: no fibre, no protein worth counting, and like any drink finished in minutes it barely registers as food. Three pints of 5% is about 650 kcal and leaves dinner exactly where it was.
A second effect sits apart from the arithmetic. Alcohol cannot be stored, so the body clears it first, and fat oxidation is suppressed for the hours that takes. The calories count once rather than twice, but they are not inert — they pause the process a deficit relies on.
Every country publishes its own guidance on low-risk drinking limits; this page is only about energy content. On the arithmetic, two pints planned into a Friday is about 400 kcal and fits inside most weeks without disturbing a calorie deficit. The same two added on top of a full day do not.
A pint is a decision about volume
The same 5% beer arrives in serves that are not comparable: a 330 ml bottle is about 125 kcal, a 440 ml can 165, a US pint (473 ml) 180, a UK pint 215, and a one-litre stein 380. The largest is three times the smallest, which makes glass size the cheapest lever there is — a half of 5% is about 110 kcal, where a pint of 3.5% is 160.
For comparison, a 175 ml glass of wine is around 150 kcal and a 25 ml measure of whisky about 55 — not because spirits are lighter, but because the measure is small.
Figures are typical values and vary by variety, size and preparation. General information, not medical advice.