Sierra Leonean Leone to US Dollar. 1 SLL = 0 USD. 12H 1D 1W 1M 1Y 2Y 5Y 10Y. Jun 13, 2022, 22:47 UTC - Jun 13, 2022, 22:47 UTC SLL/USD close: 0 low: 0 high: 0. Currency Information. SLL - Sierra Leonean Leone. Our currency rankings show that the most popular Sierra Leonean Leone exchange rate is the SLL to USD rate. The currency code for Sierra ...