How much is 10 galleons?

Could you please clarify for me the context in which you're asking about the value of 10 galleons? Galleons were historically a type of large sailing ship used for trade and exploration in the 16th and 17th centuries, not a form of currency. However, if you're referring to galleons as a fictional currency from a book, game, or movie, such as the Harry Potter series, the value would depend on the specific context and the exchange rate established within that universe. Could you provide more information or context for your question?