| Caernarfon to Jicin | 856.24 mi (1,377.98 km) |
| Caernarfon to Jihlava | 893.24 mi (1,437.52 km) |
| Caernarfon to Jindrichuv Hradec | 876.72 mi (1,410.94 km) |
| Caernarfon to Jirkov | 776.19 mi (1,249.15 km) |
| Caernarfon to Kadan | 771.96 mi (1,242.35 km) |
| Caernarfon to Karlovy Vary | 759.27 mi (1,221.93 km) |
| Caernarfon to Karvina | 1,002.56 mi (1,613.46 km) |
| Caernarfon to Kladno | 811.74 mi (1,306.36 km) |
| Caernarfon to Klasterec nad Ohri | 767.64 mi (1,235.39 km) |
| Caernarfon to Klatovy | 799.77 mi (1,287.10 km) |
| Caernarfon to Kolin | 860.15 mi (1,384.28 km) |
| Caernarfon to Koprivnice | 992.80 mi (1,597.76 km) |
| Caernarfon to Kralupy nad Vltavou | 818.13 mi (1,316.65 km) |
| Caernarfon to Kraluv Dvur | 814.28 mi (1,310.46 km) |
| Caernarfon to Krnov | 961.67 mi (1,547.66 km) |
