| Portchester to Collegno | 565.31 mi (909.78 km) |
| Portchester to Cologno al Serio | 615.59 mi (990.70 km) |
| Portchester to Cologno Monzese | 602.57 mi (969.75 km) |
| Portchester to Colorno | 670.10 mi (1,078.43 km) |
| Portchester to Comacchio | 747.72 mi (1,203.35 km) |
| Portchester to Comiso | 1,233.15 mi (1,984.56 km) |
| Portchester to Como | 582.83 mi (937.98 km) |
| Portchester to Concordia Sagittaria | 729.91 mi (1,174.67 km) |
| Portchester to Concorezzo | 601.90 mi (968.67 km) |
| Portchester to Conegliano | 703.19 mi (1,131.68 km) |
| Portchester to Conselice | 742.66 mi (1,195.20 km) |
| Portchester to Conselve | 712.69 mi (1,146.97 km) |
| Portchester to Conversano | 1,105.89 mi (1,779.76 km) |
| Portchester to Copertino | 1,174.70 mi (1,890.50 km) |
| Portchester to Copparo | 725.69 mi (1,167.89 km) |
