sgd to idr+7.07%. (1Y). 1 SGD = 12,696.7 IDR. May 18, 2025, 23:33 UTC. May 2025 Jul 2025 Sep 2025 Oct 2025 Dec 2025The 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