| Rockville Centre to Jicin | 4,095.73 mi (6,591.45 km) |
| Rockville Centre to Jihlava | 4,139.17 mi (6,661.34 km) |
| Rockville Centre to Jindrichuv Hradec | 4,124.41 mi (6,637.60 km) |
| Rockville Centre to Jirkov | 4,019.45 mi (6,468.68 km) |
| Rockville Centre to Kadan | 4,016.40 mi (6,463.77 km) |
| Rockville Centre to Karlovy Vary | 4,005.22 mi (6,445.78 km) |
| Rockville Centre to Karvina | 4,238.71 mi (6,821.54 km) |
| Rockville Centre to Kladno | 4,056.09 mi (6,527.65 km) |
| Rockville Centre to Klasterec nad Ohri | 4,012.20 mi (6,457.02 km) |
| Rockville Centre to Klatovy | 4,048.27 mi (6,515.06 km) |
| Rockville Centre to Kolin | 4,103.16 mi (6,603.40 km) |
| Rockville Centre to Koprivnice | 4,232.20 mi (6,811.07 km) |
| Rockville Centre to Kralupy nad Vltavou | 4,061.48 mi (6,536.32 km) |
| Rockville Centre to Kraluv Dvur | 4,059.91 mi (6,533.79 km) |
| Rockville Centre to Krnov | 4,198.05 mi (6,756.11 km) |
