| Portes-les-Valence to Kobarid | 431.27 mi (694.06 km) |
| Portes-les-Valence to Kobilje | 568.43 mi (914.80 km) |
| Portes-les-Valence to Kocevje | 488.11 mi (785.54 km) |
| Portes-les-Valence to Komen | 435.61 mi (701.04 km) |
| Portes-les-Valence to Komenda | 476.28 mi (766.51 km) |
| Portes-les-Valence to Koper | 433.42 mi (697.52 km) |
| Portes-les-Valence to Kostanjevica na Krki | 516.12 mi (830.61 km) |
| Portes-les-Valence to Kostel | 490.21 mi (788.92 km) |
| Portes-les-Valence to Kozje | 523.77 mi (842.93 km) |
| Portes-les-Valence to Kranj | 468.37 mi (753.77 km) |
| Portes-les-Valence to Kranjska Gora | 444.07 mi (714.66 km) |
| Portes-les-Valence to Krizevci | 555.24 mi (893.57 km) |
| Portes-les-Valence to Krsko | 519.43 mi (835.94 km) |
| Portes-les-Valence to Kuzma | 555.52 mi (894.02 km) |
| Portes-les-Valence to Lasko | 509.08 mi (819.28 km) |
