| Portalegre to Kamen | 1,115.21 mi (1,794.75 km) |
| Portalegre to Kamenz | 1,323.97 mi (2,130.72 km) |
| Portalegre to Kamp-Lintfort | 1,076.23 mi (1,732.02 km) |
| Portalegre to Kandel | 1,022.93 mi (1,646.24 km) |
| Portalegre to Kappeln | 1,331.16 mi (2,142.30 km) |
| Portalegre to Karben | 1,090.57 mi (1,755.10 km) |
| Portalegre to Karlsdorf-Neuthard | 1,037.76 mi (1,670.11 km) |
| Portalegre to Karlsfeld | 1,120.42 mi (1,803.15 km) |
| Portalegre to Karlsruhe | 1,027.54 mi (1,653.67 km) |
| Portalegre to Kassel | 1,161.97 mi (1,870.00 km) |
| Portalegre to Kaufbeuren | 1,075.15 mi (1,730.28 km) |
| Portalegre to Kaufering | 1,092.25 mi (1,757.80 km) |
| Portalegre to Kaufungen | 1,164.53 mi (1,874.13 km) |
| Portalegre to Kehl | 988.16 mi (1,590.29 km) |
| Portalegre to Kelheim | 1,158.67 mi (1,864.70 km) |
