| Saint-Martin-Boulogne to Juprelle | 170.63 mi (274.60 km) |
| Saint-Martin-Boulogne to Jurbise | 101.72 mi (163.71 km) |
| Saint-Martin-Boulogne to Kalmthout | 131.21 mi (211.16 km) |
| Saint-Martin-Boulogne to Kampenhout | 128.17 mi (206.27 km) |
| Saint-Martin-Boulogne to Kapelle-op-den-Bos | 120.91 mi (194.58 km) |
| Saint-Martin-Boulogne to Kapellen | 128.39 mi (206.63 km) |
| Saint-Martin-Boulogne to Kasterlee | 148.76 mi (239.41 km) |
| Saint-Martin-Boulogne to Keerbergen | 132.16 mi (212.70 km) |
| Saint-Martin-Boulogne to Kinrooi | 181.18 mi (291.58 km) |
| Saint-Martin-Boulogne to Knokke-Heist | 83.53 mi (134.43 km) |
| Saint-Martin-Boulogne to Koekelare | 63.91 mi (102.86 km) |
| Saint-Martin-Boulogne to Koekelberg | 118.36 mi (190.48 km) |
| Saint-Martin-Boulogne to Koksijde | 51.33 mi (82.60 km) |
| Saint-Martin-Boulogne to Kontich | 125.89 mi (202.60 km) |
| Saint-Martin-Boulogne to Kortemark | 65.02 mi (104.65 km) |
