| Portchester to Cividale del Friuli | 741.10 mi (1,192.69 km) |
| Portchester to Civita Castellana | 870.25 mi (1,400.53 km) |
| Portchester to Civitanova Marche | 869.19 mi (1,398.83 km) |
| Portchester to Civitavecchia | 859.54 mi (1,383.30 km) |
| Portchester to Civitella in Val di Chiana | 790.08 mi (1,271.50 km) |
| Portchester to Clusone | 611.89 mi (984.75 km) |
| Portchester to Coccaglio | 626.81 mi (1,008.76 km) |
| Portchester to Codigoro | 739.38 mi (1,189.92 km) |
| Portchester to Codogno | 634.98 mi (1,021.91 km) |
| Portchester to Codroipo | 727.70 mi (1,171.11 km) |
| Portchester to Cogoleto | 635.91 mi (1,023.40 km) |
| Portchester to Colle di Val d'Elsa | 770.39 mi (1,239.82 km) |
| Portchester to Colle Salvetti | 737.92 mi (1,187.57 km) |
| Portchester to Collecchio | 672.56 mi (1,082.38 km) |
| Portchester to Colleferro | 919.97 mi (1,480.55 km) |
