| Postojna to Krosno Odrzanskie | 434.20 mi (698.79 km) |
| Postojna to Krotoszyn | 433.62 mi (697.85 km) |
| Postojna to Kruszwica | 511.50 mi (823.19 km) |
| Postojna to Krynica | 401.94 mi (646.87 km) |
| Postojna to Krzeszowice | 391.62 mi (630.25 km) |
| Postojna to Kudowa-Zdroj | 335.39 mi (539.76 km) |
| Postojna to Kutno | 503.29 mi (809.97 km) |
| Postojna to Kwidzyn | 588.58 mi (947.22 km) |
| Postojna to Lancut | 474.71 mi (763.98 km) |
| Postojna to Lapy | 631.58 mi (1,016.42 km) |
| Postojna to Lask | 459.92 mi (740.17 km) |
| Postojna to Laziska Gorne | 370.45 mi (596.17 km) |
| Postojna to Lebork | 625.90 mi (1,007.30 km) |
| Postojna to Leczna | 549.75 mi (884.74 km) |
| Postojna to Leczyca | 488.79 mi (786.63 km) |
