| Hilton Head Island to Cortona | 4,862.90 mi (7,826.09 km) |
| Hilton Head Island to Cosenza | 5,186.97 mi (8,347.62 km) |
| Hilton Head Island to Cossato | 4,625.51 mi (7,444.04 km) |
| Hilton Head Island to Costa Volpino | 4,703.60 mi (7,569.72 km) |
| Hilton Head Island to Creazzo | 4,772.89 mi (7,681.23 km) |
| Hilton Head Island to Crema | 4,698.37 mi (7,561.30 km) |
| Hilton Head Island to Cremona | 4,720.52 mi (7,596.95 km) |
| Hilton Head Island to Crevalcore | 4,782.19 mi (7,696.19 km) |
| Hilton Head Island to Crispiano | 5,187.64 mi (8,348.71 km) |
| Hilton Head Island to Crosia | 5,201.78 mi (8,371.45 km) |
| Hilton Head Island to Crotone | 5,234.67 mi (8,424.39 km) |
| Hilton Head Island to Cuneo | 4,629.99 mi (7,451.25 km) |
| Hilton Head Island to Cuorgne | 4,607.24 mi (7,414.64 km) |
| Hilton Head Island to Cusano Milanino | 4,671.09 mi (7,517.39 km) |
| Hilton Head Island to Cutro | 5,230.19 mi (8,417.18 km) |
