| Postojna to Kelkheim (Taunus) | 402.20 mi (647.28 km) |
| Postojna to Kelsterbach | 395.91 mi (637.15 km) |
| Postojna to Kemberg | 421.23 mi (677.91 km) |
| Postojna to Kempen | 524.93 mi (844.79 km) |
| Postojna to Kempten | 228.69 mi (368.04 km) |
| Postojna to Kenzingen | 346.48 mi (557.60 km) |
| Postojna to Kerpen | 492.73 mi (792.97 km) |
| Postojna to Ketsch | 362.62 mi (583.59 km) |
| Postojna to Kevelaer | 540.67 mi (870.12 km) |
| Postojna to Kiel | 617.35 mi (993.52 km) |
| Postojna to Kierspe | 478.97 mi (770.82 km) |
| Postojna to Kirchhain | 424.71 mi (683.51 km) |
| Postojna to Kirchheim bei Munchen | 202.32 mi (325.60 km) |
| Postojna to Kirchheim unter Teck | 298.81 mi (480.90 km) |
| Postojna to Kirchhundem | 462.57 mi (744.43 km) |
