| Hilton Head Island to Castelletto sopra Ticino | 4,642.13 mi (7,470.78 km) |
| Hilton Head Island to Castelli Calepio | 4,700.42 mi (7,564.60 km) |
| Hilton Head Island to Castelnovo ne' Monti | 4,757.03 mi (7,655.71 km) |
| Hilton Head Island to Castelnuovo Berardenga | 4,838.87 mi (7,787.42 km) |
| Hilton Head Island to Castelnuovo di Porto | 4,921.38 mi (7,920.20 km) |
| Hilton Head Island to Castelnuovo di Verona | 4,744.33 mi (7,635.26 km) |
| Hilton Head Island to Castelnuovo Rangone | 4,777.45 mi (7,688.56 km) |
| Hilton Head Island to Castelvetrano | 5,077.34 mi (8,171.19 km) |
| Hilton Head Island to Castelvetro di Modena | 4,779.66 mi (7,692.12 km) |
| Hilton Head Island to Castenaso | 4,802.56 mi (7,728.97 km) |
| Hilton Head Island to Castenedolo | 4,722.55 mi (7,600.20 km) |
| Hilton Head Island to Castiglion Fiorentino | 4,857.70 mi (7,817.71 km) |
| Hilton Head Island to Castiglione del Lago | 4,869.78 mi (7,837.16 km) |
| Hilton Head Island to Castiglione delle Stiviere | 4,733.53 mi (7,617.88 km) |
| Hilton Head Island to Castrolibero | 5,184.07 mi (8,342.96 km) |
