The old Spanish currency was the Peseta until it was replaced by the Euro in 1999. One Peseta is equivalent to 0.00666803 United States Dollars, as of July 2015.
The Peseta was the currency of Spain from 1969 until 1999, when it was replaced by the Euro; however, it stayed in circulation until 2002 when Euro Notes and Coins were introduced. In the present, Spanish Pesetas are exchangeable at any branch of the Spanish Central Bank with no additional cost with a conversion rate of 1 Euro for 166.368 Pesetas until December 31st, 2020. Past this date, the Pesetas will not be exchangeable for any legal currency.