| Cities | Distance |
|---|---|
| Koper to Kidricevo | 115.45 mi (185.79 km) |
| Koper to Kobarid | 48.69 mi (78.36 km) |
| Koper to Kobilje | 149.62 mi (240.80 km) |
| Koper to Kocevje | 54.82 mi (88.22 km) |
| Koper to Komen | 18.39 mi (29.60 km) |
| Koper to Komenda | 59.70 mi (96.08 km) |
| Koper to Kostanjevica na Krki | 84.16 mi (135.44 km) |
| Koper to Kostel | 57.03 mi (91.77 km) |
| Koper to Kozje | 95.08 mi (153.02 km) |
| Koper to Kranj | 56.18 mi (90.42 km) |
| Koper to Kranjska Gora | 64.68 mi (104.09 km) |
| Koper to Krizevci | 134.95 mi (217.18 km) |
| Koper to Krsko | 88.78 mi (142.88 km) |
| Koper to Kuzma | 143.15 mi (230.38 km) |
| Koper to Lasko | 83.68 mi (134.67 km) |