| North Potomac to Kamen | 3,974.31 mi (6,396.04 km) |
| North Potomac to Kamenz | 4,233.77 mi (6,813.60 km) |
| North Potomac to Kamp-Lintfort | 3,932.13 mi (6,328.16 km) |
| North Potomac to Kandel | 4,067.58 mi (6,546.14 km) |
| North Potomac to Kappeln | 3,976.15 mi (6,399.00 km) |
| North Potomac to Karben | 4,056.78 mi (6,528.76 km) |
| North Potomac to Karlsdorf-Neuthard | 4,080.06 mi (6,566.22 km) |
| North Potomac to Karlsfeld | 4,227.73 mi (6,803.87 km) |
| North Potomac to Karlsruhe | 4,078.13 mi (6,563.11 km) |
| North Potomac to Kassel | 4,054.08 mi (6,524.41 km) |
| North Potomac to Kaufbeuren | 4,203.90 mi (6,765.52 km) |
| North Potomac to Kaufering | 4,208.15 mi (6,772.36 km) |
| North Potomac to Kaufungen | 4,059.82 mi (6,533.65 km) |
| North Potomac to Kehl | 4,067.12 mi (6,545.40 km) |
| North Potomac to Kelheim | 4,221.50 mi (6,793.85 km) |
