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 FX1 JPY to IDR stats. The performance of JPY to IDR in the last 30 days saw a 30 day hh of 118.3690 and a 30 day low of 112.6230. This means the 30 day average was 114.7174.