| Hilton Head Island to Cassina de' Pecchi | 4,680.14 mi (7,531.95 km) |
| Hilton Head Island to Cassino | 5,002.46 mi (8,050.68 km) |
| Hilton Head Island to Castagneto Carducci | 4,803.26 mi (7,730.09 km) |
| Hilton Head Island to Castano Primo | 4,652.62 mi (7,487.67 km) |
| Hilton Head Island to Castel Bolognese | 4,822.98 mi (7,761.84 km) |
| Hilton Head Island to Castel Gandolfo | 4,940.43 mi (7,950.86 km) |
| Hilton Head Island to Castel Goffredo | 4,735.36 mi (7,620.83 km) |
| Hilton Head Island to Castel Maggiore | 4,796.25 mi (7,718.82 km) |
| Hilton Head Island to Castel Mella | 4,715.23 mi (7,588.43 km) |
| Hilton Head Island to Castel San Giorgio | 5,065.56 mi (8,152.23 km) |
| Hilton Head Island to Castel San Giovanni | 4,696.20 mi (7,557.80 km) |
| Hilton Head Island to Castel San Pietro Terme | 4,810.84 mi (7,742.30 km) |
| Hilton Head Island to Castel Volturno | 5,020.80 mi (8,080.20 km) |
| Hilton Head Island to Castelbuono | 5,131.77 mi (8,258.78 km) |
| Hilton Head Island to Casteldaccia | 5,100.82 mi (8,208.98 km) |
