What does your job really pay per hour?

After unpaid overtime, commuting time and the costs you only have because you work there.

Headline hourly rate
Real hourly rate
Hours a year the job really takes

Using this to decide

Once you know your real hourly rate, price things in hours instead of pounds. A £600 phone upgrade is not "£600" — it is however many hours of your life at the rate below. It is also the honest way to compare two job offers: a higher salary an hour further away can easily be a pay cut.