| Sofia to Juprelle | 1,004.80 mi (1,617.08 km) |
| Sofia to Jurbise | 1,063.15 mi (1,710.97 km) |
| Sofia to Kalmthout | 1,066.88 mi (1,716.98 km) |
| Sofia to Kampenhout | 1,050.19 mi (1,690.12 km) |
| Sofia to Kapelle-op-den-Bos | 1,059.61 mi (1,705.28 km) |
| Sofia to Kapellen | 1,066.10 mi (1,715.73 km) |
| Sofia to Kasterlee | 1,044.11 mi (1,680.33 km) |
| Sofia to Keerbergen | 1,048.85 mi (1,687.95 km) |
| Sofia to Kinrooi | 1,010.46 mi (1,626.18 km) |
| Sofia to Knokke-Heist | 1,111.48 mi (1,788.76 km) |
| Sofia to Koekelare | 1,116.56 mi (1,796.93 km) |
| Sofia to Koekelberg | 1,056.52 mi (1,700.31 km) |
| Sofia to Koksijde | 1,130.00 mi (1,818.56 km) |
| Sofia to Kontich | 1,059.85 mi (1,705.66 km) |
| Sofia to Kortemark | 1,112.31 mi (1,790.09 km) |
