| Constanta to Jicin | 756.47 mi (1,217.43 km) |
| Constanta to Jihlava | 713.80 mi (1,148.74 km) |
| Constanta to Jindrichuv Hradec | 730.70 mi (1,175.95 km) |
| Constanta to Jirkov | 832.58 mi (1,339.91 km) |
| Constanta to Kadan | 835.92 mi (1,345.29 km) |
| Constanta to Karlovy Vary | 847.85 mi (1,364.48 km) |
| Constanta to Karvina | 615.85 mi (991.12 km) |
| Constanta to Kladno | 796.16 mi (1,281.30 km) |
| Constanta to Klasterec nad Ohri | 840.17 mi (1,352.12 km) |
| Constanta to Klatovy | 808.64 mi (1,301.39 km) |
| Constanta to Kolin | 748.77 mi (1,205.03 km) |
| Constanta to Koprivnice | 620.53 mi (998.65 km) |
| Constanta to Kralupy nad Vltavou | 790.53 mi (1,272.23 km) |
| Constanta to Kraluv Dvur | 792.91 mi (1,276.06 km) |
| Constanta to Krnov | 655.94 mi (1,055.63 km) |
