In the UK, the national minimum wage varies according to your age and if you are an apprentice.
If you are 21 years old or over, the minmum wage is £5.93 per hour (correct at August 2011) . If you are 18-20 years old, the minimum wage is £4.92 per hour, and £3.64 per hour for 16-17 year olds. If you are in apprenticeship, the minimum rate is £2.50. The rate changes according to the inflation rate and economic growth, so for updated information, visit UK Government official pages