It depends. This one is worth 1 pence: This one 2 pence: This one 5 pence: This one 20 pence: This one 50 pence: And this one £1: And that's excluding all Australian, Canadian and New Zealand coins. read more
Since they are still currently in circulation in the UK by the millions their value is exactly what it says on the coin - A Queen Elizabeth II ten pence piece is worth ten whole pence; a fifty pence coin, 50p, etc etc. read more