| Somerville to Cividale del Friuli | 3,985.71 mi (6,414.38 km) |
| Somerville to Civita Castellana | 4,074.67 mi (6,557.55 km) |
| Somerville to Civitanova Marche | 4,096.24 mi (6,592.26 km) |
| Somerville to Civitavecchia | 4,054.89 mi (6,525.71 km) |
| Somerville to Civitella in Val di Chiana | 4,005.00 mi (6,445.42 km) |
| Somerville to Clusone | 3,846.30 mi (6,190.02 km) |
| Somerville to Coccaglio | 3,857.90 mi (6,208.69 km) |
| Somerville to Codigoro | 3,973.42 mi (6,394.60 km) |
| Somerville to Codogno | 3,859.37 mi (6,211.05 km) |
| Somerville to Codroipo | 3,971.42 mi (6,391.39 km) |
| Somerville to Cogoleto | 3,838.79 mi (6,177.93 km) |
| Somerville to Colle di Val d'Elsa | 3,980.23 mi (6,405.56 km) |
| Somerville to Colle Salvetti | 3,945.09 mi (6,349.01 km) |
| Somerville to Collecchio | 3,894.87 mi (6,268.19 km) |
| Somerville to Colleferro | 4,121.51 mi (6,632.92 km) |
