| Southborough to Kamen | 320.41 mi (515.65 km) |
| Southborough to Kamenz | 597.95 mi (962.31 km) |
| Southborough to Kamp-Lintfort | 271.54 mi (437.00 km) |
| Southborough to Kandel | 379.42 mi (610.61 km) |
| Southborough to Kappeln | 469.24 mi (755.16 km) |
| Southborough to Karben | 377.39 mi (607.36 km) |
| Southborough to Karlsdorf-Neuthard | 392.03 mi (630.91 km) |
| Southborough to Karlsfeld | 539.73 mi (868.61 km) |
| Southborough to Karlsruhe | 389.96 mi (627.57 km) |
| Southborough to Kassel | 399.28 mi (642.57 km) |
| Southborough to Kaufbeuren | 516.27 mi (830.86 km) |
| Southborough to Kaufering | 520.02 mi (836.89 km) |
| Southborough to Kaufungen | 404.58 mi (651.11 km) |
| Southborough to Kehl | 380.82 mi (612.87 km) |
| Southborough to Kelheim | 537.00 mi (864.22 km) |
