yen to idrYen to Rupiah Forecast, JPY to IDR foren exchange rate prediction, buy and sell snals. Rate target in 14 days: 115.171. The best long-term & short-term JPYIDR FXThis is the Japanese Yen (JPY) to Indonesian Rupiah (IDR) exchange rate history summary page for 2018. Hhest: 136.11 IDR on October 28, 2018: Average: 128.42 IDR over