sgd to idrCurrent IDR Conversion Rate As of 23:55:59 UTC, 1 Singapore Dollar (SGD) equals 12618.033305138 Indonesian Rupiah (IDR). Use our real-time currency1 IDR to SGD - Convert Indonesian Rupiahs to Singapore Dollars. Xe Currency Converter. Convert Send Charts Alerts. Amount. 1 Rp. From. IDR - Indonesian Rupiah.