How can I accurately translate my US salary to a comparable salary relative to cost of living in the UK?

Question

I work in the advertising industry as a creative copywriter and want to find out what the average salary is for a similar position in central London for someone with 10 years of experience.

Also, more than a straight dollar to pound conversion, I would like to know how to factor in the difference in cost of living.

Can you recommend any resources where I can get an accurate translation?

Answer 1

google search