sgd to idrDownload Our Currency Converter App ; 1 SGD, 12,713.10000 IDR ; 5 SGD, 63,565.50000 IDR ; 10 SGD, 127,131.00000 IDR ; 20 SGD, 254,262.00000 IDR.The 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