| Gloucester to Cortona | 887.31 mi (1,427.99 km) |
| Gloucester to Cosenza | 1,239.62 mi (1,994.98 km) |
| Gloucester to Cossato | 642.76 mi (1,034.42 km) |
| Gloucester to Costa Volpino | 697.61 mi (1,122.70 km) |
| Gloucester to Creazzo | 761.74 mi (1,225.90 km) |
| Gloucester to Crema | 704.45 mi (1,133.70 km) |
| Gloucester to Cremona | 727.90 mi (1,171.44 km) |
| Gloucester to Crevalcore | 787.24 mi (1,266.94 km) |
| Gloucester to Crispiano | 1,206.67 mi (1,941.96 km) |
| Gloucester to Crosia | 1,243.27 mi (2,000.84 km) |
| Gloucester to Crotone | 1,280.83 mi (2,061.30 km) |
| Gloucester to Cuneo | 685.27 mi (1,102.83 km) |
| Gloucester to Cuorgne | 634.78 mi (1,021.59 km) |
| Gloucester to Cusano Milanino | 678.22 mi (1,091.49 km) |
| Gloucester to Cutro | 1,278.88 mi (2,058.16 km) |
