The Leone Currency Calculator SLL Currency Exchange Rate What is the unit of money in Sierra Leone. Currency in Sierra Leone is the Leone (SLL) = 100 cents. Notes are in denominations of SLL5,000, 2,000, 1,000, 500, 100, 50, 20, 10, 5, 2 and 1. Coins are in denominations of SLL100 and 50. Need to [...]