| South Portland to Kamen | 3,497.13 mi (5,628.09 km) |
| South Portland to Kamenz | 3,756.69 mi (6,045.81 km) |
| South Portland to Kamp-Lintfort | 3,455.00 mi (5,560.28 km) |
| South Portland to Kandel | 3,591.08 mi (5,779.29 km) |
| South Portland to Kappeln | 3,499.94 mi (5,632.60 km) |
| South Portland to Karben | 3,579.78 mi (5,761.10 km) |
| South Portland to Karlsdorf-Neuthard | 3,603.48 mi (5,799.24 km) |
| South Portland to Karlsfeld | 3,751.13 mi (6,036.85 km) |
| South Portland to Karlsruhe | 3,601.63 mi (5,796.27 km) |
| South Portland to Kassel | 3,576.89 mi (5,756.44 km) |
| South Portland to Kaufbeuren | 3,727.61 mi (5,999.00 km) |
| South Portland to Kaufering | 3,731.70 mi (6,005.59 km) |
| South Portland to Kaufungen | 3,582.62 mi (5,765.68 km) |
| South Portland to Kehl | 3,590.97 mi (5,779.11 km) |
| South Portland to Kelheim | 3,744.59 mi (6,026.33 km) |
