The Wizarding Currency of Harry Potter
Within the setting of the Harry Potter world, wizards and witches (particularly of Britain) use their own unique currency consisting of three different types of coins.
The first coin is the Galleon or the “Gold-Galleon”, the most valuable coin of wizarding Britain. The Galleon is a large gold coin, said by J. K. Rowling to be worth approximately 5 British pounds, though the exchange rate may vary.
The second coin is the Sickle or “Silver-Sickle”. A Sickle is slightly smaller than a Galleon, and is worth 1/17th of a Galleon.
The third and last coin is Knut or “Bronze-Knut”, the least valuable coin of wizarding Britain. The smallest coin of the three, it is worth 1/29th of a Sickle and is approximately worth the same as one British penny.