The official currency in the UK is the British Pound Sterling (GBP), and is decimal based like the dollar, there are 100 pence in a pound. The coins are 1p, 2p, 5p, 10p, 20p, 50p, £1, £2. The notes are in demonations of £5, £10, £20, and £50. You won’t often see the larger notes any more to combat loss to counterfeits.