| Koper to Collegno | 301.05 mi (484.49 km) |
| Koper to Cologno al Serio | 195.09 mi (313.96 km) |
| Koper to Cologno Monzese | 215.57 mi (346.93 km) |
| Koper to Colorno | 168.44 mi (271.08 km) |
| Koper to Comacchio | 95.70 mi (154.01 km) |
| Koper to Comiso | 595.90 mi (959.00 km) |
| Koper to Como | 225.02 mi (362.14 km) |
| Koper to Concordia Sagittaria | 45.21 mi (72.75 km) |
| Koper to Concorezzo | 212.68 mi (342.28 km) |
| Koper to Conegliano | 73.07 mi (117.60 km) |
| Koper to Conselice | 117.06 mi (188.39 km) |
| Koper to Conselve | 93.17 mi (149.95 km) |
| Koper to Conversano | 359.45 mi (578.49 km) |
| Koper to Copertino | 425.26 mi (684.39 km) |
| Koper to Copparo | 102.79 mi (165.42 km) |
