Mauritania Ouguiya (MRO) and Sierra Leonean Leone (SLL) Currency Exchange Rate Conversion Calculator

This Mauritania Ouguiya and Sierra Leonean Leone convertor is up to date with exchange rates from September 21, 2026.

Enter the amount to be converted in the box to the left of Mauritania Ouguiya. Use "Swap currencies" to make Sierra Leonean Leone the default currency. Click on Sierra Leonean Leones or Mauritania Ouguiyas to convert between that currency and all other currencies.

Mauritania Ouguiya (MRO)	Sierra Leonean Leone (SLL)

Other countries and currencies

The Mauritania Ouguiya is the currency in Mauritania (MR, MRT). The Sierra Leonean Leone is the currency in Sierra Leone (SL, SLE). The symbol for MRO can be written UM. The symbol for SLL can be written Le. The Mauritania Ouguiya is divided into 5 khoums. The Sierra Leonean Leone is divided into 100 cents. The exchange rate for the Mauritania Ouguiya was last updated on June 5, 2023 from MSN. The exchange rate for the Sierra Leonean Leone was last updated on December 29, 2023 from MSN. The MRO conversion factor has 3 significant digits. The SLL conversion factor has 3 significant digits.