| Greenbelt to Kamen | 3,965.28 mi (6,381.50 km) |
| Greenbelt to Kamenz | 4,225.26 mi (6,799.90 km) |
| Greenbelt to Kamp-Lintfort | 3,922.97 mi (6,313.41 km) |
| Greenbelt to Kandel | 4,057.78 mi (6,530.36 km) |
| Greenbelt to Kappeln | 3,968.38 mi (6,386.49 km) |
| Greenbelt to Karben | 4,047.40 mi (6,513.67 km) |
| Greenbelt to Karlsdorf-Neuthard | 4,070.30 mi (6,550.51 km) |
| Greenbelt to Karlsfeld | 4,217.98 mi (6,788.19 km) |
| Greenbelt to Karlsruhe | 4,068.31 mi (6,547.32 km) |
| Greenbelt to Kassel | 4,045.13 mi (6,510.00 km) |
| Greenbelt to Kaufbeuren | 4,193.96 mi (6,749.53 km) |
| Greenbelt to Kaufering | 4,198.30 mi (6,756.51 km) |
| Greenbelt to Kaufungen | 4,050.86 mi (6,519.24 km) |
| Greenbelt to Kehl | 4,057.11 mi (6,529.29 km) |
| Greenbelt to Kelheim | 4,212.02 mi (6,778.58 km) |
