| Clay to Jicin | 4,937.84 mi (7,946.68 km) |
| Clay to Jihlava | 4,983.91 mi (8,020.82 km) |
| Clay to Jindrichuv Hradec | 4,970.39 mi (7,999.07 km) |
| Clay to Jirkov | 4,863.29 mi (7,826.70 km) |
| Clay to Kadan | 4,860.75 mi (7,822.62 km) |
| Clay to Karlovy Vary | 4,850.35 mi (7,805.88 km) |
| Clay to Karvina | 5,078.98 mi (8,173.83 km) |
| Clay to Kladno | 4,900.27 mi (7,886.22 km) |
| Clay to Klasterec nad Ohri | 4,856.62 mi (7,815.98 km) |
| Clay to Klatovy | 4,895.19 mi (7,878.05 km) |
| Clay to Kolin | 4,946.59 mi (7,960.76 km) |
| Clay to Koprivnice | 5,073.67 mi (8,165.28 km) |
| Clay to Kralupy nad Vltavou | 4,905.20 mi (7,894.16 km) |
| Clay to Kraluv Dvur | 4,904.70 mi (7,893.35 km) |
| Clay to Krnov | 5,038.60 mi (8,108.85 km) |
