| Castelo Branco to Juprelle | 981.36 mi (1,579.35 km) |
| Castelo Branco to Jurbise | 924.23 mi (1,487.40 km) |
| Castelo Branco to Kalmthout | 983.88 mi (1,583.40 km) |
| Castelo Branco to Kampenhout | 963.20 mi (1,550.12 km) |
| Castelo Branco to Kapelle-op-den-Bos | 961.85 mi (1,547.94 km) |
| Castelo Branco to Kapellen | 979.44 mi (1,576.25 km) |
| Castelo Branco to Kasterlee | 990.68 mi (1,594.34 km) |
| Castelo Branco to Keerbergen | 968.74 mi (1,559.04 km) |
| Castelo Branco to Kinrooi | 1,008.77 mi (1,623.46 km) |
| Castelo Branco to Knokke-Heist | 949.73 mi (1,528.44 km) |
| Castelo Branco to Koekelare | 927.90 mi (1,493.31 km) |
| Castelo Branco to Koekelberg | 953.09 mi (1,533.85 km) |
| Castelo Branco to Koksijde | 919.90 mi (1,480.44 km) |
| Castelo Branco to Kontich | 970.30 mi (1,561.55 km) |
| Castelo Branco to Kortemark | 926.17 mi (1,490.53 km) |
