the highest-valued currency per unit, then as of mid-2025—and confirmed in recent sources—the Kuwaiti Dinar (KWD) tops the list:
• The Kuwaiti Dinar is currently the world’s strongest currency, with 1 KWD ≈ USD 3.26   .
• It’s followed by the Bahraini Dinar (BHD) and the Omani Rial (OMR), valued around USD 2.65 and USD 2.60 respectively  .
So, in terms of face value compared to the U.S. dollar, the Kuwaiti Dinar is the most powerful currency today.