| Greenbelt to Jicin | 4,300.42 mi (6,920.85 km) |
| Greenbelt to Jihlava | 4,344.38 mi (6,991.61 km) |
| Greenbelt to Jindrichuv Hradec | 4,329.87 mi (6,968.25 km) |
| Greenbelt to Jirkov | 4,224.47 mi (6,798.63 km) |
| Greenbelt to Kadan | 4,221.52 mi (6,793.88 km) |
| Greenbelt to Karlovy Vary | 4,210.50 mi (6,776.14 km) |
| Greenbelt to Karvina | 4,443.05 mi (7,150.40 km) |
| Greenbelt to Kladno | 4,261.19 mi (6,857.72 km) |
| Greenbelt to Klasterec nad Ohri | 4,217.34 mi (6,787.15 km) |
| Greenbelt to Klatovy | 4,253.90 mi (6,845.99 km) |
| Greenbelt to Kolin | 4,308.11 mi (6,933.24 km) |
| Greenbelt to Koprivnice | 4,436.78 mi (7,140.31 km) |
| Greenbelt to Kralupy nad Vltavou | 4,266.48 mi (6,866.24 km) |
| Greenbelt to Kraluv Dvur | 4,265.12 mi (6,864.05 km) |
| Greenbelt to Krnov | 4,402.44 mi (7,085.05 km) |
