| Constanta to Kamen | 1,093.32 mi (1,759.53 km) |
| Constanta to Kamenz | 832.48 mi (1,339.75 km) |
| Constanta to Kamp-Lintfort | 1,137.35 mi (1,830.39 km) |
| Constanta to Kandel | 1,023.57 mi (1,647.28 km) |
| Constanta to Kappeln | 1,104.02 mi (1,776.75 km) |
| Constanta to Karben | 1,018.32 mi (1,638.83 km) |
| Constanta to Karlsdorf-Neuthard | 1,009.11 mi (1,624.01 km) |
| Constanta to Karlsfeld | 865.24 mi (1,392.47 km) |
| Constanta to Karlsruhe | 1,013.49 mi (1,631.05 km) |
| Constanta to Kassel | 1,012.77 mi (1,629.90 km) |
| Constanta to Kaufbeuren | 898.98 mi (1,446.78 km) |
| Constanta to Kaufering | 889.68 mi (1,431.81 km) |
| Constanta to Kaufungen | 1,007.04 mi (1,620.68 km) |
| Constanta to Kehl | 1,034.24 mi (1,664.45 km) |
| Constanta to Kelheim | 859.45 mi (1,383.16 km) |
