sgd to idrSGD to IDR forecast for May 2025.In the beginning at 12709 Indonesian Rupiahs. Maximum 12931, minimum 11546. The averaged exchange rate 12452. SGD to IDR forecast at the1 IDR to SGD - Convert Indonesian Rupiahs to Singapore Dollars. Xe Currency Converter. Convert Send Charts Alerts. Amount. 1 Rp. From. IDR - Indonesian Rupiah.