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 toWelcome to the 2025 SGD IDR history summary. This is the Singapore Dollar (SGD) to Indonesian Rupiah (IDR) exchange rate history data page for the year of 2025,