Short answer: a pint of lager is roughly 180 to 200 calories. The longer answer is more useful, because it's the comparison that changes what you order.
These are typical figures for a UK pint (568ml) and standard measures. Brands vary, and stronger beers are higher — alcohol itself carries about 7 calories a gram, so strength drives most of the difference.
| Drink | Calories |
|---|---|
| Pint of lager (4–5%) | 180–200 |
| Pint of stout | 210 |
| Pint of cider | 230–250 |
| 330ml bottle of beer | 140–150 |
| Large glass of wine (250ml) | 220 |
| Standard glass of wine (175ml) | 160 |
| Prosecco (125ml) | 80 |
| Spirit with a diet mixer | 60 |
| Spirit with a regular mixer | 130 |
| Espresso martini | 250 |
| Margarita | 280 |
| Piña colada | 400–600 |
Six pints is around 1,100 calories. That isn't a slip — for most people it's half a day's food, and it arrives without any of the feeling of having eaten. You can have a completely ordinary Saturday, eat nothing unusual, and still finish the day a thousand calories up.
Which is also why it's the easiest thing to change. Food swaps are fiddly and you notice them. Drink swaps are invisible: nobody at the table can tell what's in your glass.
A 35ml measure of spirit is about 60 calories on its own. With a regular mixer it's about 130 — the mixer is more than doubling the drink. Switching to a diet mixer or soda is the single cheapest change on this page, and it costs you nothing at all.
Not drink less, necessarily. Drink differently, and plan for the rest.
That last one is the part most people skip, and it's the one that decides whether a night out costs you anything at all.
Leeway is a free tool that does this arithmetic for you. Put what's coming up into the week and it spreads the cost across the days around it, with a floor it won't plan below.
Open the planner — freeLeeway is a planning tool, not medical or dietary advice. Calorie figures are typical estimates and vary by brand, measure and recipe. It isn't suitable if you have, or have had, an eating disorder or a disordered relationship with food. If you're unsure what a safe calorie target is for you, speak to a GP or registered dietitian first.