| Koyulhisar to Cividale del Friuli | 1,286.35 mi (2,070.18 km) |
| Koyulhisar to Civita Castellana | 1,321.70 mi (2,127.06 km) |
| Koyulhisar to Civitanova Marche | 1,253.75 mi (2,017.71 km) |
| Koyulhisar to Civitavecchia | 1,353.60 mi (2,178.41 km) |
| Koyulhisar to Civitella in Val di Chiana | 1,355.14 mi (2,180.89 km) |
| Koyulhisar to Clusone | 1,450.26 mi (2,333.97 km) |
| Koyulhisar to Coccaglio | 1,446.98 mi (2,328.69 km) |
| Koyulhisar to Codigoro | 1,339.21 mi (2,155.25 km) |
| Koyulhisar to Codogno | 1,458.30 mi (2,346.90 km) |
| Koyulhisar to Codroipo | 1,306.40 mi (2,102.44 km) |
| Koyulhisar to Cogoleto | 1,508.43 mi (2,427.58 km) |
| Koyulhisar to Colle di Val d'Elsa | 1,384.43 mi (2,228.02 km) |
| Koyulhisar to Colle Salvetti | 1,416.94 mi (2,280.34 km) |
| Koyulhisar to Collecchio | 1,431.84 mi (2,304.32 km) |
| Koyulhisar to Colleferro | 1,292.81 mi (2,080.58 km) |
