| Smyrna to Cividale del Friuli | 4,921.12 mi (7,919.78 km) |
| Smyrna to Civita Castellana | 5,008.42 mi (8,060.27 km) |
| Smyrna to Civitanova Marche | 5,031.14 mi (8,096.84 km) |
| Smyrna to Civitavecchia | 4,988.17 mi (8,027.69 km) |
| Smyrna to Civitella in Val di Chiana | 4,939.44 mi (7,949.25 km) |
| Smyrna to Clusone | 4,781.63 mi (7,695.29 km) |
| Smyrna to Coccaglio | 4,793.13 mi (7,713.80 km) |
| Smyrna to Codigoro | 4,908.69 mi (7,899.77 km) |
| Smyrna to Codogno | 4,794.39 mi (7,715.83 km) |
| Smyrna to Codroipo | 4,906.87 mi (7,896.84 km) |
| Smyrna to Cogoleto | 4,773.03 mi (7,681.45 km) |
| Smyrna to Colle di Val d'Elsa | 4,914.47 mi (7,909.07 km) |
| Smyrna to Colle Salvetti | 4,879.27 mi (7,852.43 km) |
| Smyrna to Collecchio | 4,829.78 mi (7,772.78 km) |
| Smyrna to Colleferro | 5,054.97 mi (8,135.19 km) |
