| Montabaur to Kastoria | 942.63 mi (1,517.02 km) |
| Montabaur to Katerini | 997.32 mi (1,605.04 km) |
| Montabaur to Keratsini | 1,158.89 mi (1,865.05 km) |
| Montabaur to Kerkyra | 949.88 mi (1,528.68 km) |
| Montabaur to Kiato | 1,128.50 mi (1,816.15 km) |
| Montabaur to Kifisia | 1,159.05 mi (1,865.31 km) |
| Montabaur to Kilkis | 973.03 mi (1,565.94 km) |
| Montabaur to Komotini | 1,060.89 mi (1,707.34 km) |
| Montabaur to Korinthos | 1,138.18 mi (1,831.72 km) |
| Montabaur to Koropi | 1,170.99 mi (1,884.53 km) |
| Montabaur to Korydallos | 1,159.06 mi (1,865.33 km) |
| Montabaur to Kos | 1,342.44 mi (2,160.44 km) |
| Montabaur to Kozani | 971.38 mi (1,563.29 km) |
| Montabaur to Lagos | 1,047.72 mi (1,686.14 km) |
| Montabaur to Lamia | 1,068.85 mi (1,720.15 km) |
