What does a Personal Trainer actually do?

The short version

Personal trainers coach clients one-to-one — and most are self-employed, paying rent to a gym for access to its members. It's a sales-and-small-business career wearing gym clothes: your income is whatever you build.

The pitch: real earning potential of £██–███K once established, control of your own client base, and growing demand. The catch: gym rent and cancellations are yours to absorb, the client hours are 6am and 7pm, and most new trainers leave within two years because they never learned to sell.

Entry routes that actually work

• Level 2 Gym Instructor → Level 3 PT — the mandatory ladder — a few months and a modest course cost.
• Employed gym instructor first — earn while you build toward PT clients.
• Gym-rent self-employment — the standard model: pay the gym monthly, keep your session fees.