| Gloucester to Cividale del Friuli | 812.47 mi (1,307.55 km) |
| Gloucester to Civita Castellana | 951.91 mi (1,531.95 km) |
| Gloucester to Civitanova Marche | 947.61 mi (1,525.02 km) |
| Gloucester to Civitavecchia | 942.09 mi (1,516.14 km) |
| Gloucester to Civitella in Val di Chiana | 870.88 mi (1,401.55 km) |
| Gloucester to Clusone | 689.81 mi (1,110.14 km) |
| Gloucester to Coccaglio | 705.58 mi (1,135.52 km) |
| Gloucester to Codigoro | 816.69 mi (1,314.34 km) |
| Gloucester to Codogno | 715.17 mi (1,150.95 km) |
| Gloucester to Codroipo | 800.29 mi (1,287.93 km) |
| Gloucester to Cogoleto | 718.95 mi (1,157.04 km) |
| Gloucester to Colle di Val d'Elsa | 851.94 mi (1,371.06 km) |
| Gloucester to Colle Salvetti | 819.94 mi (1,319.57 km) |
| Gloucester to Collecchio | 752.89 mi (1,211.66 km) |
| Gloucester to Colleferro | 1,001.70 mi (1,612.08 km) |
