The five best gym chains in London

There is no single best gym chain, and any list claiming otherwise is selling something. A shift worker who deadlifts and a parent who swims want opposite things, and the chain that serves one badly serves the other well.

So this is ranked on transparent criteria, and each entry says plainly who it is wrong for.

How we ranked them

Four measures, weighted towards the things people actually regret getting wrong:

• Value per pound — equipment and access relative to monthly cost.
• Coverage — how many London boroughs have one, because the best gym is the one you will actually go to.
• Facilities — pools, recovery and staffed expertise.
• Flexibility — how much a wrong decision costs you.

Every figure below comes from our own directory of 258 London venues, so you can check the working.

1. PureGym — best overall value

Twenty-eight London locations in our directory, spread across twenty-eight different boroughs, all open 24 hours, from around £22 a month on a rolling contract. Nothing else in London combines that price, that coverage and that flexibility.

The equipment-per-pound ratio is the best available anywhere in the city, and the classes are included rather than charged separately.

Wrong for you if you want to swim, need a sauna after training, or dislike training in a busy room between six and eight in the evening. Full analysis →

2. Third Space — best premium club

Fourteen London clubs, every one with a pool, from £210 to £287 a month. It wins the premium tier decisively because its nearest competitor charges more for fewer clubs and no water at all.

The clubs are also genuinely different from one another rather than a template rolled out fourteen times, and corporate schemes through central London employers bring the effective price down considerably.

Wrong for you if you live outside central or south-west London, or you object to joining fees and waitlists. Full analysis →

Third Space charges less for fourteen clubs with pools than Equinox charges for three without.

3. Nuffield Health — best all-rounder

Around £95 to £115 a month buys a pool, a sauna, classes, multi-club access across the country, and something no competitor offers: physiotherapists and clinical services in the same building, because the whole organisation is a healthcare charity rather than a gym company.

For anyone managing an injury or returning to exercise after illness, that is a categorically different proposition. The discount architecture — Blue Light, Vitality, corporate — means most members pay well below list.

Wrong for you if you train before 06:30 or after 22:00, or you only ever want a barbell. Full analysis →

4. The Gym Group — best budget alternative

The cheapest headline rate in the directory at £19.99, with twenty London sites and the same 24-hour, no-contract model as PureGym. It ranks below only because coverage is thinner.

Its distinguishing feature is that personal trainers are self-employed and rent space rather than being chain employees, which makes rates negotiable and the relationship direct.

Wrong for you if your nearest branch is a cramped one — at this end of the market the individual building matters far more than the brand. Full analysis →

5. Anytime Fitness — best for travellers and quiet training

Roughly £36 to £47 a month, which is double the budget chains for a smaller gym. The reasons to pay it are specific: clubs are franchise-owned so an actual owner is usually on site, they are quieter at peak times, and your keyfob opens the door at thousands of clubs worldwide.

If you travel for work regularly, no other membership on this list follows you.

Wrong for you if you want maximum equipment per pound, or you need to be able to cancel next month — contracts here are usually fixed-term. Full analysis →

The one that is not on this list

Your council leisure centre. Better, Places Leisure, Everyone Active and the in-house operators run 75-plus sites across London from around £32 to £64 a month, and 60 of them have a pool — more swimming than every private chain in this directory combined.

They are not a chain in the marketing sense, so they never appear in rankings like this one. For swimming, classes and childcare at a fair price, they routinely beat the private options and are worth checking before you sign anything.

And the one that misses out

Equinox. Three London clubs, up to £470 a month, and not one of them has a swimming pool. It is a genuinely impressive product for people whose time is worth more than the price difference, but on the four criteria used here it cannot place. Full analysis →

Rankings reflect the criteria above applied to our own listings in August 2026. Coverage figures reflect what this directory holds, not each operator's complete London estate — several chains have more branches than we currently list. Prices change often; confirm before joining. We have no commercial relationship with any operator on this site.