Wizarding currency

Currency in the wizarding world consists of three different coins. In order of value, they are: Galleon, Sickle and Knut. They are made of gold, silver and bronze, respectively. According to Hagrid, there are 17 Sickles in a Galleon, and 29 Knuts in a Sickle.

According to J.K. Rowling, the approximate value of a Galleon is  'About five [Great British] pounds, though the exchange rate varies!' . This is consistent with the "textbooks" Rowling wrote for charity (Fantastic Beasts and Where to Find Them and Quidditch Through the Ages), which states that US$250 million is equivilent to 34 million Galleons, which means that 1 Galleon ≈ US$7.35. US$7.35 was the same as about GB£5 at the time of publishing.

Converted into other currencies
With this information, we can calculate the value of wizarding currency in Muggle money. The amounts below are approximate, and were accurate as of 12 January, 2005.