| Sinnai to Cividale del Friuli | 516.25 mi (830.82 km) |
| Sinnai to Civita Castellana | 266.25 mi (428.49 km) |
| Sinnai to Civitanova Marche | 362.61 mi (583.57 km) |
| Sinnai to Civitavecchia | 236.32 mi (380.32 km) |
| Sinnai to Civitella in Val di Chiana | 312.68 mi (503.21 km) |
| Sinnai to Clusone | 456.26 mi (734.28 km) |
| Sinnai to Coccaglio | 434.37 mi (699.05 km) |
| Sinnai to Codigoro | 410.24 mi (660.22 km) |
| Sinnai to Codogno | 405.52 mi (652.62 km) |
| Sinnai to Codroipo | 498.43 mi (802.15 km) |
| Sinnai to Cogoleto | 352.63 mi (567.50 km) |
| Sinnai to Colle di Val d'Elsa | 300.26 mi (483.22 km) |
| Sinnai to Colle Salvetti | 304.22 mi (489.60 km) |
| Sinnai to Collecchio | 379.95 mi (611.47 km) |
| Sinnai to Colleferro | 261.35 mi (420.60 km) |
