| Clemson to Castrovillari | 5,154.84 mi (8,295.92 km) |
| Clemson to Catania | 5,190.61 mi (8,353.48 km) |
| Clemson to Catanzaro | 5,207.13 mi (8,380.06 km) |
| Clemson to Cattolica | 4,854.05 mi (7,811.84 km) |
| Clemson to Cava de' Tirreni | 5,055.41 mi (8,135.90 km) |
| Clemson to Cavallino | 5,224.60 mi (8,408.17 km) |
| Clemson to Cavarzere | 4,786.58 mi (7,703.26 km) |
| Clemson to Cave | 4,937.03 mi (7,945.39 km) |
| Clemson to Cavriago | 4,734.38 mi (7,619.24 km) |
| Clemson to Cavriglia | 4,814.86 mi (7,748.77 km) |
| Clemson to Cazzago San Martino | 4,684.09 mi (7,538.31 km) |
| Clemson to Ceccano | 4,963.58 mi (7,988.11 km) |
| Clemson to Cecina | 4,779.00 mi (7,691.06 km) |
| Clemson to Cefalu | 5,121.36 mi (8,242.03 km) |
| Clemson to Ceglie Messapico | 5,181.21 mi (8,338.35 km) |
