| Upminster to Juprelle | 236.16 mi (380.07 km) |
| Upminster to Jurbise | 174.83 mi (281.36 km) |
| Upminster to Kalmthout | 181.80 mi (292.58 km) |
| Upminster to Kampenhout | 190.65 mi (306.83 km) |
| Upminster to Kapelle-op-den-Bos | 181.67 mi (292.38 km) |
| Upminster to Kapellen | 180.86 mi (291.07 km) |
| Upminster to Kasterlee | 203.60 mi (327.66 km) |
| Upminster to Keerbergen | 193.08 mi (310.73 km) |
| Upminster to Kinrooi | 238.51 mi (383.84 km) |
| Upminster to Knokke-Heist | 131.54 mi (211.70 km) |
| Upminster to Koekelare | 122.13 mi (196.55 km) |
| Upminster to Koekelberg | 182.96 mi (294.45 km) |
| Upminster to Koksijde | 108.24 mi (174.20 km) |
| Upminster to Kontich | 183.52 mi (295.35 km) |
| Upminster to Kortemark | 126.05 mi (202.86 km) |
