| Somma Lombardo to Cividale del Friuli | 229.40 mi (369.19 km) |
| Somma Lombardo to Civita Castellana | 297.89 mi (479.41 km) |
| Somma Lombardo to Civitanova Marche | 297.67 mi (479.05 km) |
| Somma Lombardo to Civitavecchia | 291.70 mi (469.45 km) |
| Somma Lombardo to Civitella in Val di Chiana | 215.81 mi (347.32 km) |
| Somma Lombardo to Clusone | 61.79 mi (99.45 km) |
| Somma Lombardo to Coccaglio | 62.32 mi (100.30 km) |
| Somma Lombardo to Codigoro | 176.23 mi (283.61 km) |
| Somma Lombardo to Codogno | 60.68 mi (97.66 km) |
| Somma Lombardo to Codroipo | 206.92 mi (333.00 km) |
| Somma Lombardo to Cogoleto | 89.44 mi (143.94 km) |
| Somma Lombardo to Colle di Val d'Elsa | 198.09 mi (318.79 km) |
| Somma Lombardo to Colle Salvetti | 168.53 mi (271.22 km) |
| Somma Lombardo to Collecchio | 98.02 mi (157.74 km) |
| Somma Lombardo to Colleferro | 347.69 mi (559.55 km) |
