| Mountain Ash to Jicin | 815.67 mi (1,312.70 km) |
| Mountain Ash to Jihlava | 845.23 mi (1,360.26 km) |
| Mountain Ash to Jindrichuv Hradec | 825.77 mi (1,328.94 km) |
| Mountain Ash to Jirkov | 733.13 mi (1,179.86 km) |
| Mountain Ash to Kadan | 727.53 mi (1,170.85 km) |
| Mountain Ash to Karlovy Vary | 712.87 mi (1,147.25 km) |
| Mountain Ash to Karvina | 962.54 mi (1,549.06 km) |
| Mountain Ash to Kladno | 766.83 mi (1,234.10 km) |
| Mountain Ash to Klasterec nad Ohri | 723.11 mi (1,163.73 km) |
| Mountain Ash to Klatovy | 747.29 mi (1,202.64 km) |
| Mountain Ash to Kolin | 816.15 mi (1,313.46 km) |
| Mountain Ash to Koprivnice | 950.47 mi (1,529.63 km) |
| Mountain Ash to Kralupy nad Vltavou | 774.33 mi (1,246.16 km) |
| Mountain Ash to Kraluv Dvur | 767.64 mi (1,235.40 km) |
| Mountain Ash to Krnov | 922.03 mi (1,483.86 km) |
