sgd to idr1 SGD = 12,719.999218 IDR May 21, 2025 05:45 UTC. Check the currency rates against all the world currencies here. The currency converter below is easy to1 IDR to SGD - Convert Indonesian Rupiahs to Singapore Dollars. Xe Currency Converter. Convert Send Charts Alerts. Amount. 1 Rp. From. IDR - Indonesian Rupiah.