sgd to idrThis chart shows SGDIDR exchange rate history data for 2015. The SGDIDR rate is up +3.83% in 2015. This means the Singapore Dollar increased in value compared to1 IDR to SGD - Convert Indonesian Rupiahs to Singapore Dollars. Xe Currency Converter. Convert Send Charts Alerts. Amount. 1 Rp. From. IDR - Indonesian Rupiah.