| Round Rock to Juprelle | 5,141.68 mi (8,274.73 km) |
| Round Rock to Jurbise | 5,086.44 mi (8,185.83 km) |
| Round Rock to Kalmthout | 5,078.83 mi (8,173.58 km) |
| Round Rock to Kampenhout | 5,096.62 mi (8,202.22 km) |
| Round Rock to Kapelle-op-den-Bos | 5,087.14 mi (8,186.96 km) |
| Round Rock to Kapellen | 5,079.76 mi (8,175.08 km) |
| Round Rock to Kasterlee | 5,101.55 mi (8,210.16 km) |
| Round Rock to Keerbergen | 5,097.67 mi (8,203.91 km) |
| Round Rock to Kinrooi | 5,134.96 mi (8,263.92 km) |
| Round Rock to Knokke-Heist | 5,035.32 mi (8,103.56 km) |
| Round Rock to Koekelare | 5,031.62 mi (8,097.61 km) |
| Round Rock to Koekelberg | 5,090.82 mi (8,192.89 km) |
| Round Rock to Koksijde | 5,018.61 mi (8,076.67 km) |
| Round Rock to Kontich | 5,086.46 mi (8,185.86 km) |
| Round Rock to Kortemark | 5,036.07 mi (8,104.78 km) |
