| Idstein to Imatra | 1,091.43 mi (1,756.49 km) |
| Idstein to Jakobstad | 1,070.80 mi (1,723.28 km) |
| Idstein to Jamsa | 1,029.58 mi (1,656.96 km) |
| Idstein to Janakkala | 971.99 mi (1,564.27 km) |
| Idstein to Jarvenpaa | 963.28 mi (1,550.24 km) |
| Idstein to Joensuu | 1,174.56 mi (1,890.28 km) |
| Idstein to Joutseno | 1,081.79 mi (1,740.98 km) |
| Idstein to Jyvaskyla | 1,060.54 mi (1,706.78 km) |
| Idstein to Jyvaskylan Maalaiskunta | 1,062.79 mi (1,710.39 km) |
| Idstein to Kaarina | 891.54 mi (1,434.80 km) |
| Idstein to Kajaani | 1,200.31 mi (1,931.71 km) |
| Idstein to Kalajoki | 1,126.75 mi (1,813.32 km) |
| Idstein to Kangasala | 983.90 mi (1,583.43 km) |
| Idstein to Kankaanpaa | 963.88 mi (1,551.21 km) |
| Idstein to Karhula | 1,014.47 mi (1,632.63 km) |
