| Opalenica to Juprelle | 480.09 mi (772.63 km) |
| Opalenica to Jurbise | 550.78 mi (886.39 km) |
| Opalenica to Kalmthout | 513.34 mi (826.13 km) |
| Opalenica to Kampenhout | 516.96 mi (831.97 km) |
| Opalenica to Kapelle-op-den-Bos | 523.32 mi (842.20 km) |
| Opalenica to Kapellen | 515.71 mi (829.95 km) |
| Opalenica to Kasterlee | 494.92 mi (796.50 km) |
| Opalenica to Keerbergen | 512.43 mi (824.68 km) |
| Opalenica to Kinrooi | 463.36 mi (745.70 km) |
| Opalenica to Knokke-Heist | 563.74 mi (907.25 km) |
| Opalenica to Koekelare | 580.51 mi (934.24 km) |
| Opalenica to Koekelberg | 527.41 mi (848.79 km) |
| Opalenica to Koksijde | 594.29 mi (956.42 km) |
| Opalenica to Kontich | 517.85 mi (833.40 km) |
| Opalenica to Kortemark | 578.82 mi (931.53 km) |
