RMB (Chinese Yuan Renminbi - CNY) is approximately equal to 615.8247 SLL (Sierra Leone Leone). It is the official currency of Sierra Leone, officially the Republic of Sierra Leone, a West African country. 1 SLL (Sierra Leone Leone) is sub-divided into100 Cents. The issue of the currency is controlled by the Central Bank, the Bank of Sierra Leone. The currency is denoted by the symbol Le and was introduced in 1964. The SLL (Sierra Leone Leone) is pegged to none.