sgd to idrLatest Currency Exchange Rates: 1 Singapore Dollar = 12691.115 Indonesian Rupiah. On this page convert SGD to IDR using live currency rates as of 21052025 031 SGD = 12,676.7785 IDR Exchange rates may vary. Fees may apply. Singapore Dollars to Indonesian Rupiahs: exchange rates SGD. IDR. 1 SGD, 12,628.63 IDR.