| Gloucester City to Cividale del Friuli | 4,256.34 mi (6,849.92 km) |
| Gloucester City to Civita Castellana | 4,343.55 mi (6,990.27 km) |
| Gloucester City to Civitanova Marche | 4,365.93 mi (7,026.29 km) |
| Gloucester City to Civitavecchia | 4,323.49 mi (6,957.99 km) |
| Gloucester City to Civitella in Val di Chiana | 4,274.33 mi (6,878.87 km) |
| Gloucester City to Clusone | 4,116.44 mi (6,624.77 km) |
| Gloucester City to Coccaglio | 4,127.92 mi (6,643.24 km) |
| Gloucester City to Codigoro | 4,243.47 mi (6,829.21 km) |
| Gloucester City to Codogno | 4,129.17 mi (6,645.25 km) |
| Gloucester City to Codroipo | 4,241.97 mi (6,826.79 km) |
| Gloucester City to Cogoleto | 4,107.98 mi (6,611.16 km) |
| Gloucester City to Colle di Val d'Elsa | 4,249.43 mi (6,838.79 km) |
| Gloucester City to Colle Salvetti | 4,214.25 mi (6,782.17 km) |
| Gloucester City to Collecchio | 4,164.57 mi (6,702.22 km) |
| Gloucester City to Colleferro | 4,390.21 mi (7,065.37 km) |
