sgd to idr1 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.Get the latest Indonesian Rupiah to Singapore Dollar (IDR SGD) real-time quote, historical performance, charts, and other financial information to help you make more informed trading