How much is 100 pesetas in euros?

Based upon the latest conversion rate set at the end of February 2012, 100 Pesetas is worth € 0.60 ($0.80 USD).

As the Peseta has not been legal tender in Spain since 2002, they must be exchanged for Euros at the Central Bank of Spain.

100 Peseta coins minted in 1965 & earlier contain precious metal, so any reputable coin shop or dealer will pay significantly more for them. Even those in poor condition have a decent melt value.