| Sierre to Cividale del Friuli | 282.43 mi (454.52 km) |
| Sierre to Civita Castellana | 366.85 mi (590.39 km) |
| Sierre to Civitanova Marche | 367.74 mi (591.82 km) |
| Sierre to Civitavecchia | 358.88 mi (577.55 km) |
| Sierre to Civitella in Val di Chiana | 285.70 mi (459.79 km) |
| Sierre to Clusone | 119.32 mi (192.03 km) |
| Sierre to Coccaglio | 128.04 mi (206.06 km) |
| Sierre to Codigoro | 243.72 mi (392.22 km) |
| Sierre to Codogno | 131.04 mi (210.90 km) |
| Sierre to Codroipo | 261.75 mi (421.25 km) |
| Sierre to Cogoleto | 142.64 mi (229.55 km) |
| Sierre to Colle di Val d'Elsa | 266.86 mi (429.47 km) |
| Sierre to Colle Salvetti | 235.78 mi (379.45 km) |
| Sierre to Collecchio | 168.33 mi (270.91 km) |
| Sierre to Colleferro | 416.67 mi (670.57 km) |
