Spain uses the Euro (EUR) as its official currency, having adopted it in 1999 (physical currency introduced 2002) as a eurozone member.
As of September 2021, the rate was approximately 1 EUR = 1.17 USD. However, currency rates fluctuate constantly due to economic conditions, central bank policies, and market forces.
For accurate, real-time conversions, check:
Always verify current rates before financial transactions, as the 2021 figure is outdated for today's decisions.