The Lowest Calorie Beers in the UK, Ranked

If you're after the lowest calorie beer in the UK, the honest starting point is this: the fewer units in the glass, the fewer calories in the glass. Alcohol carries about 7 calories per gram, which is why every genuinely light beer on the market is either alcohol-free, low-alcohol, or quietly weaker than its rivals. The good news is that the bottom end of the market has never been better — the alcohol-free craft beer scene in the UK has gone from an apology to a genuine pleasure in about five years, and the light full-strength options are respectable too.

Here's our ranked rundown, from barely-there to full-strength-but-sensible. All figures are approximate, taken from widely published brewer numbers — recipes change, so check the label.

Tier one: alcohol-free, under 100 calories

These are the outright winners, and most of them are actually nice to drink now.

1. Lucky Saint (0.5%) — about 53 calories per 330ml. The unfiltered Bavarian-brewed lager that made alcohol-free cool. Proper bready depth, and at roughly 16 calories per 100ml it's lighter than most soft drinks.
2. Corona Cero (0.0%) — about 55–60 calories per 330ml. Crisp, light and convincingly close to the original. We've compared it with full-strength Corona in our calories in Corona guide.
3. Stella Artois Alcohol Free (0.0%) — about 60 calories per 330ml. Sweeter than the 4.6% version but recognisably Stella.
4. Heineken 0.0 — about 69 calories per 330ml. The one you can find absolutely everywhere, including most pub fridges.
5. Guinness 0.0 — about 70 calories per 440ml can (roughly 90 per pint). The most impressive technical achievement of the lot: the nitrogen surge and creamy head survive intact at about a third of the calories of the standard pint.

It's worth knowing that alcohol-free beers keep some carbohydrate — occasionally more than the originals, since there's no fermentation stripping the sugars out. If carbs rather than calories are your concern, our carbs in beer guide covers which styles to pick.

Tier two: light beers with alcohol, 80–150 calories a serving

The middle ground: beers engineered to be light while still being beers.

1. Michelob Ultra (3.5%) — about 79 calories per 330ml. The self-styled fitness lager. Thin, cold and inoffensive, which is exactly the brief.
2. Skinny Lager (4.0%) — about 89 calories per 330ml. The clever one: full 4% strength, but brewed very dry so almost no carbohydrate survives. Vegan, gluten-free and roughly a third lighter than a comparable premium lager.
3. Beavertown Lazer Crush AF (0.3%) — about 60 calories per 330ml. Sneaking into this tier as the hop-forward option: an alcohol-free IPA with real aroma, for when lager fatigue sets in.

A note of caution on the word "light": in the UK it isn't a regulated term for beer. Some light beers save you 100 calories; some save you 20. The per-100ml figure on the label is the only number that doesn't spin.

Tier three: ordinary full-strength pints that stay low

No special branding, no compromise — just the standard taps that happen to sit at the light end. Per 568ml pint:

1. Foster's (3.7%) — about 170 calories. The lightest of the big mainstream lagers, purely because it's the weakest.
2. Carlsberg Danish Pilsner (3.8%) — about 175 calories.
3. Coors (4.0%) — about 180 calories.
4. Carling (4.0%) — about 190 calories. Britain's biggest-selling lager is also one of its lighter pints.
5. Guinness Draught (4.2%) — about 210 calories. Yes, really — the famously "heavy" stout undercuts every premium lager on the bar. The creaminess is nitrogen, not calories.

For context, the premium world lagers — Stella, Peroni, San Miguel and friends — run from about 227 to 255 calories a pint. The full comparison is in our calories in a pint of lager guide, but the pattern is simple: in the full-strength world, picking a sub-4% beer over a 5% one saves you 60 to 80 calories every single pint.

Session strength: the traditional answer

Before "light beer" existed, Britain had already solved this problem: session bitter. Traditional cask ales at 3.4 to 3.8% — the sort of thing Yorkshire and the West Country have brewed forever — land around 150 to 180 calories a pint with far more flavour than any engineered light lager. A well-kept pint of ordinary bitter is arguably the best calories-to-character deal in the pub, and the modern wave of "table beers" and small pales at 2.5 to 3.5% pushes the numbers even lower. If your local has something at 3.5% on cask, that's the connoisseur's low-calorie choice.

How to actually use this list

• Drinking several? Go tier three. A session on Carling instead of San Miguel saves about 65 calories a pint without changing the evening.
• Counting seriously? Mix tiers. Alternating a full-strength pint with an alcohol-free one halves your calories and your units at a stroke, and nobody at the table will notice or care.
• Don't chase "light" branding blindly. Skinny Lager genuinely earns its name; some competitors are ordinary weak lager in gym kit. Check the per-100ml figure.
• Remember the units. The lowest calorie beers are also the lowest alcohol ones, which means this is one of the rare shopping lists where the healthy choice and the sensible choice are the same thing.

Figures are approximate throughout — brewers tweak recipes and strengths constantly, so the label wins every argument.

Light beer, heavy walking

Our favourite low-calorie beer strategy has always been to put a few miles between each pint. Our brewery tours do exactly that — walking between taprooms and breweries in cities across the UK, tasting as you go, with a guide who can point you to the best low-strength beer in every city. And if someone you know deserves a day of that, our gift vouchers arrive by email and never expire.