sgd to idrThis chart shows SGDIDR exchange rate history data for 2025. The SGDIDR rate is up +0.56% in 2025. This means the Singapore Dollar increased in value compared to the Indonesian Rupiah.1 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.