| Hilton Head Island to Collegno | 4,612.18 mi (7,422.58 km) |
| Hilton Head Island to Cologno al Serio | 4,693.01 mi (7,552.67 km) |
| Hilton Head Island to Cologno Monzese | 4,675.89 mi (7,525.12 km) |
| Hilton Head Island to Colorno | 4,741.81 mi (7,631.20 km) |
| Hilton Head Island to Comacchio | 4,828.47 mi (7,770.68 km) |
| Hilton Head Island to Comiso | 5,188.75 mi (8,350.49 km) |
| Hilton Head Island to Como | 4,659.57 mi (7,498.85 km) |
| Hilton Head Island to Concordia Sagittaria | 4,825.53 mi (7,765.94 km) |
| Hilton Head Island to Concorezzo | 4,676.74 mi (7,526.48 km) |
| Hilton Head Island to Conegliano | 4,797.95 mi (7,721.56 km) |
| Hilton Head Island to Conselice | 4,818.47 mi (7,754.58 km) |
| Hilton Head Island to Conselve | 4,798.57 mi (7,722.55 km) |
| Hilton Head Island to Conversano | 5,169.77 mi (8,319.94 km) |
| Hilton Head Island to Copertino | 5,236.35 mi (8,427.09 km) |
| Hilton Head Island to Copparo | 4,807.02 mi (7,736.15 km) |
