| Gloucester to Castrovillari | 1,210.55 mi (1,948.20 km) |
| Gloucester to Catania | 1,300.96 mi (2,093.69 km) |
| Gloucester to Catanzaro | 1,272.90 mi (2,048.53 km) |
| Gloucester to Cattolica | 879.63 mi (1,415.63 km) |
| Gloucester to Cava de' Tirreni | 1,112.80 mi (1,790.87 km) |
| Gloucester to Cavallino | 1,255.87 mi (2,021.13 km) |
| Gloucester to Cavarzere | 801.61 mi (1,290.07 km) |
| Gloucester to Cave | 994.53 mi (1,600.54 km) |
| Gloucester to Cavriago | 766.32 mi (1,233.28 km) |
| Gloucester to Cavriglia | 857.84 mi (1,380.57 km) |
| Gloucester to Cazzago San Martino | 706.42 mi (1,136.87 km) |
| Gloucester to Ceccano | 1,021.07 mi (1,643.25 km) |
| Gloucester to Cecina | 835.81 mi (1,345.11 km) |
| Gloucester to Cefalu | 1,237.38 mi (1,991.38 km) |
| Gloucester to Ceglie Messapico | 1,213.80 mi (1,953.42 km) |
