| Koyulhisar to Collegno | 1,561.95 mi (2,513.71 km) |
| Koyulhisar to Cologno al Serio | 1,460.51 mi (2,350.46 km) |
| Koyulhisar to Cologno Monzese | 1,480.58 mi (2,382.76 km) |
| Koyulhisar to Colorno | 1,424.34 mi (2,292.26 km) |
| Koyulhisar to Comacchio | 1,335.27 mi (2,148.90 km) |
| Koyulhisar to Comiso | 1,271.33 mi (2,046.01 km) |
| Koyulhisar to Como | 1,491.25 mi (2,399.94 km) |
| Koyulhisar to Concordia Sagittaria | 1,310.64 mi (2,109.27 km) |
| Koyulhisar to Concorezzo | 1,478.10 mi (2,378.76 km) |
| Koyulhisar to Conegliano | 1,338.11 mi (2,153.49 km) |
| Koyulhisar to Conselice | 1,351.63 mi (2,175.23 km) |
| Koyulhisar to Conselve | 1,353.73 mi (2,178.62 km) |
| Koyulhisar to Conversano | 1,084.50 mi (1,745.33 km) |
| Koyulhisar to Copertino | 1,040.39 mi (1,674.34 km) |
| Koyulhisar to Copparo | 1,353.40 mi (2,178.09 km) |
