| Gloucester to Collegno | 648.62 mi (1,043.85 km) |
| Gloucester to Cologno al Serio | 694.75 mi (1,118.10 km) |
| Gloucester to Cologno Monzese | 682.55 mi (1,098.46 km) |
| Gloucester to Colorno | 749.79 mi (1,206.66 km) |
| Gloucester to Comacchio | 825.27 mi (1,328.14 km) |
| Gloucester to Comiso | 1,317.39 mi (2,120.14 km) |
| Gloucester to Como | 662.40 mi (1,066.03 km) |
| Gloucester to Concordia Sagittaria | 803.36 mi (1,292.89 km) |
| Gloucester to Concorezzo | 681.64 mi (1,096.99 km) |
| Gloucester to Conegliano | 777.15 mi (1,250.71 km) |
| Gloucester to Conselice | 821.15 mi (1,321.52 km) |
| Gloucester to Conselve | 789.33 mi (1,270.31 km) |
| Gloucester to Conversano | 1,184.13 mi (1,905.68 km) |
| Gloucester to Copertino | 1,252.92 mi (2,016.38 km) |
| Gloucester to Copparo | 803.26 mi (1,292.73 km) |
