| Portugalete to Juprelle | 649.90 mi (1,045.92 km) |
| Portugalete to Jurbise | 596.13 mi (959.37 km) |
| Portugalete to Kalmthout | 657.43 mi (1,058.03 km) |
| Portugalete to Kampenhout | 634.81 mi (1,021.63 km) |
| Portugalete to Kapelle-op-den-Bos | 634.28 mi (1,020.78 km) |
| Portugalete to Kapellen | 652.84 mi (1,050.64 km) |
| Portugalete to Kasterlee | 662.30 mi (1,065.87 km) |
| Portugalete to Keerbergen | 640.35 mi (1,030.55 km) |
| Portugalete to Kinrooi | 678.15 mi (1,091.38 km) |
| Portugalete to Knokke-Heist | 627.48 mi (1,009.83 km) |
| Portugalete to Koekelare | 605.83 mi (974.99 km) |
| Portugalete to Koekelberg | 625.05 mi (1,005.92 km) |
| Portugalete to Koksijde | 599.41 mi (964.65 km) |
| Portugalete to Kontich | 642.93 mi (1,034.70 km) |
| Portugalete to Kortemark | 603.52 mi (971.28 km) |
