| Herndon to Kamen | 3,986.09 mi (6,415.00 km) |
| Herndon to Kamenz | 4,245.57 mi (6,832.59 km) |
| Herndon to Kamp-Lintfort | 3,943.91 mi (6,347.11 km) |
| Herndon to Kandel | 4,079.31 mi (6,565.02 km) |
| Herndon to Kappeln | 3,987.97 mi (6,418.02 km) |
| Herndon to Karben | 4,068.54 mi (6,547.69 km) |
| Herndon to Karlsdorf-Neuthard | 4,091.79 mi (6,585.10 km) |
| Herndon to Karlsfeld | 4,239.46 mi (6,822.76 km) |
| Herndon to Karlsruhe | 4,089.86 mi (6,581.99 km) |
| Herndon to Kassel | 4,065.86 mi (6,543.38 km) |
| Herndon to Kaufbeuren | 4,215.62 mi (6,784.38 km) |
| Herndon to Kaufering | 4,219.87 mi (6,791.23 km) |
| Herndon to Kaufungen | 4,071.60 mi (6,552.61 km) |
| Herndon to Kehl | 4,078.84 mi (6,564.25 km) |
| Herndon to Kelheim | 4,233.25 mi (6,812.77 km) |
