| Postojna to Imatra | 1,214.94 mi (1,955.26 km) |
| Postojna to Jakobstad | 1,279.07 mi (2,058.46 km) |
| Postojna to Jamsa | 1,194.60 mi (1,922.52 km) |
| Postojna to Janakkala | 1,128.01 mi (1,815.36 km) |
| Postojna to Jarvenpaa | 1,107.88 mi (1,782.95 km) |
| Postojna to Joensuu | 1,313.37 mi (2,113.66 km) |
| Postojna to Joutseno | 1,206.44 mi (1,941.57 km) |
| Postojna to Jyvaskyla | 1,225.88 mi (1,972.87 km) |
| Postojna to Jyvaskylan Maalaiskunta | 1,228.78 mi (1,977.54 km) |
| Postojna to Kaarina | 1,063.65 mi (1,711.79 km) |
| Postojna to Kajaani | 1,376.14 mi (2,214.68 km) |
| Postojna to Kalajoki | 1,330.96 mi (2,141.97 km) |
| Postojna to Kangasala | 1,153.68 mi (1,856.67 km) |
| Postojna to Kankaanpaa | 1,154.34 mi (1,857.74 km) |
| Postojna to Karhula | 1,142.20 mi (1,838.19 km) |
