| Opatija to Knurow | 393.88 mi (633.89 km) |
| Opatija to Kobylka | 575.96 mi (926.92 km) |
| Opatija to Kokoszki | 650.36 mi (1,046.65 km) |
| Opatija to Kolbuszowa | 484.87 mi (780.32 km) |
| Opatija to Kolno | 654.47 mi (1,053.26 km) |
| Opatija to Kolo | 513.62 mi (826.59 km) |
| Opatija to Kolobrzeg | 613.60 mi (987.49 km) |
| Opatija to Koluszki | 509.42 mi (819.84 km) |
| Opatija to Komorniki | 491.27 mi (790.63 km) |
| Opatija to Konin | 508.54 mi (818.42 km) |
| Opatija to Konskie | 493.03 mi (793.46 km) |
| Opatija to Konstancin-Jeziorna | 559.91 mi (901.08 km) |
| Opatija to Konstantynow Lodzki | 499.29 mi (803.52 km) |
| Opatija to Koronowo | 575.16 mi (925.63 km) |
| Opatija to Koscian | 478.46 mi (770.01 km) |
