| Rock Island to Castrovillari | 5,185.91 mi (8,345.92 km) |
| Rock Island to Catania | 5,248.55 mi (8,446.72 km) |
| Rock Island to Catanzaro | 5,244.31 mi (8,439.91 km) |
| Rock Island to Cattolica | 4,863.84 mi (7,827.59 km) |
| Rock Island to Cava de' Tirreni | 5,086.25 mi (8,185.53 km) |
| Rock Island to Cavallino | 5,240.52 mi (8,433.80 km) |
| Rock Island to Cavarzere | 4,788.06 mi (7,705.64 km) |
| Rock Island to Cave | 4,966.37 mi (7,992.60 km) |
| Rock Island to Cavriago | 4,747.26 mi (7,639.97 km) |
| Rock Island to Cavriglia | 4,834.93 mi (7,781.07 km) |
| Rock Island to Cazzago San Martino | 4,690.48 mi (7,548.59 km) |
| Rock Island to Ceccano | 4,993.28 mi (8,035.91 km) |
| Rock Island to Cecina | 4,805.58 mi (7,733.84 km) |
| Rock Island to Cefalu | 5,180.24 mi (8,336.79 km) |
| Rock Island to Ceglie Messapico | 5,197.88 mi (8,365.17 km) |
