I wish to work as a fitness instructor or a personal trainer? What is the average salary per hour in London?

Hi to everyone ! I want to become a personal trainer or a fitness instructor. I am ready to pass a course about Fitness / Gym at Level 2 and 3 . I would like to know how much most of the clubs and centres pay per hour in London ?I wish to work as a fitness instructor or a personal trainer? What is the average salary per hour in London?I don't know about London or the UK in general but unless you sell some useless plastic object on tv, Personal Trainers in the United States average around $24,000 a year. Seriously, it's not a job for money, it's a job you do if you absolutely love it.