sgd to idrSGD to IDR: Convert Singapore Dollars to Indonesian Rupiahs · 1 SGD = 12,668.2489 IDR · 1. Start your money transfer · 2. Check out our rates and fees · 3. SendThe average for the month 13534. SGD to IDR forecast at the end of the month 13521, change for November -0.4%. SGD to IDR forecast for December 2025. In the beginning