3 million usd to idrOur currency rankings show that the most popular Indonesian Rupiah exchange rate is the IDR to USD rate. The currency code for Indonesian Rupiahs is IDR. The currency symbol is Rp. It$3800000 US Dollar to Indonesian Rupiah Rp conversion .3 Million USD to IDR. Convert.4 Million USD to IDR. Rp3900000 Indonesian Rupiah to US Dollar $