| Clemson to Cadiz | 4,178.27 mi (6,724.28 km) |
| Clemson to Calafell | 4,435.05 mi (7,137.52 km) |
| Clemson to Calahorra | 4,237.62 mi (6,819.79 km) |
| Clemson to Calasparra | 4,361.99 mi (7,019.95 km) |
| Clemson to Calatayud | 4,278.71 mi (6,885.91 km) |
| Clemson to Caldas de Montbuy | 4,450.74 mi (7,162.77 km) |
| Clemson to Caldas de Reyes | 3,911.73 mi (6,295.32 km) |
| Clemson to Calella | 4,474.47 mi (7,200.97 km) |
| Clemson to Callosa de Segura | 4,405.61 mi (7,090.15 km) |
| Clemson to Calpe | 4,435.79 mi (7,138.72 km) |
| Clemson to Calvia | 4,527.74 mi (7,286.70 km) |
| Clemson to Camas | 4,168.24 mi (6,708.14 km) |
| Clemson to Cambados | 3,906.20 mi (6,286.42 km) |
| Clemson to Cambre | 3,911.44 mi (6,294.86 km) |
| Clemson to Cambrils | 4,414.59 mi (7,104.60 km) |
