sgd to idr1 SGD to IDR stats. The performance of SGD to IDR in the last 30 days saw a 30 day hh of 12,852.1000 and a 30 day low of 12,647.7000. This means the 30 day average was 12,717.7033. The change for SGD to IDR was -0.95.This SGDIDR Chart lets you see this pair's currency rate history for up to 60 days. uses hhly accurate, actual street rates of money changers. Best money