| Idrija to Karakocan | 1,404.32 mi (2,260.03 km) |
| Idrija to Karakopru | 1,409.38 mi (2,268.17 km) |
| Idrija to Karaman | 1,159.39 mi (1,865.86 km) |
| Idrija to Karapinar | 1,151.91 mi (1,853.82 km) |
| Idrija to Karatas | 1,280.27 mi (2,060.40 km) |
| Idrija to Karatepe | 877.43 mi (1,412.08 km) |
| Idrija to Karayilan | 1,311.80 mi (2,111.15 km) |
| Idrija to Kargipinar | 1,233.52 mi (1,985.16 km) |
| Idrija to Karkamis | 1,386.74 mi (2,231.74 km) |
| Idrija to Karliova | 1,439.29 mi (2,316.32 km) |
| Idrija to Kars | 1,499.18 mi (2,412.69 km) |
| Idrija to Kartal | 836.92 mi (1,346.89 km) |
| Idrija to Kas | 1,054.50 mi (1,697.06 km) |
| Idrija to Kastamonu | 1,033.97 mi (1,664.02 km) |
| Idrija to Kavak | 1,149.65 mi (1,850.18 km) |
