| Clemson to Carmona | 4,186.70 mi (6,737.85 km) |
| Clemson to Cartagena | 4,415.76 mi (7,106.48 km) |
| Clemson to Cartama | 4,258.16 mi (6,852.85 km) |
| Clemson to Cartaya | 4,114.80 mi (6,622.13 km) |
| Clemson to Caspe | 4,358.15 mi (7,013.77 km) |
| Clemson to Cassa de la Selva | 4,476.33 mi (7,203.95 km) |
| Clemson to Castalla | 4,402.17 mi (7,084.61 km) |
| Clemson to Castellbisbal | 4,446.55 mi (7,156.02 km) |
| Clemson to Castelldefels | 4,451.98 mi (7,164.77 km) |
| Clemson to Castello de Ampurias | 4,474.89 mi (7,201.64 km) |
| Clemson to Castellon de la Plana | 4,393.42 mi (7,070.52 km) |
| Clemson to Castilleja de la Cuesta | 4,167.90 mi (6,707.58 km) |
| Clemson to Catarroja | 4,392.02 mi (7,068.27 km) |
| Clemson to Catral | 4,408.23 mi (7,094.36 km) |
| Clemson to Caudete | 4,383.51 mi (7,054.57 km) |
