| Willoughby to Juprelle | 3,962.05 mi (6,376.30 km) |
| Willoughby to Jurbise | 3,905.45 mi (6,285.21 km) |
| Willoughby to Kalmthout | 3,899.84 mi (6,276.18 km) |
| Willoughby to Kampenhout | 3,916.78 mi (6,303.44 km) |
| Willoughby to Kapelle-op-den-Bos | 3,907.33 mi (6,288.23 km) |
| Willoughby to Kapellen | 3,900.61 mi (6,277.42 km) |
| Willoughby to Kasterlee | 3,922.62 mi (6,312.84 km) |
| Willoughby to Keerbergen | 3,918.01 mi (6,305.43 km) |
| Willoughby to Kinrooi | 3,956.37 mi (6,367.16 km) |
| Willoughby to Knokke-Heist | 3,855.46 mi (6,204.76 km) |
| Willoughby to Koekelare | 3,851.08 mi (6,197.72 km) |
| Willoughby to Koekelberg | 3,910.70 mi (6,293.66 km) |
| Willoughby to Koksijde | 3,837.89 mi (6,176.49 km) |
| Willoughby to Kontich | 3,906.93 mi (6,287.60 km) |
| Willoughby to Kortemark | 3,855.46 mi (6,204.76 km) |
