| Hilton Head Island to Cocentaina | 4,394.87 mi (7,072.86 km) |
| Hilton Head Island to Coin | 4,225.84 mi (6,800.83 km) |
| Hilton Head Island to Colindres | 4,140.21 mi (6,663.03 km) |
| Hilton Head Island to Collado-Villalba | 4,172.01 mi (6,714.20 km) |
| Hilton Head Island to Colmenar Viejo | 4,183.48 mi (6,732.67 km) |
| Hilton Head Island to Colmenarejo | 4,173.18 mi (6,716.09 km) |
| Hilton Head Island to Conil de la Frontera | 4,165.85 mi (6,704.28 km) |
| Hilton Head Island to Consuegra | 4,218.52 mi (6,789.06 km) |
| Hilton Head Island to Corbera de Llobregat | 4,444.45 mi (7,152.65 km) |
| Hilton Head Island to Cordoba | 4,195.46 mi (6,751.93 km) |
| Hilton Head Island to Coria del Rio | 4,143.86 mi (6,668.90 km) |
| Hilton Head Island to Crevillente | 4,388.84 mi (7,063.15 km) |
| Hilton Head Island to Cuarte de Huerva | 4,302.42 mi (6,924.08 km) |
| Hilton Head Island to Cubellas | 4,437.19 mi (7,140.97 km) |
| Hilton Head Island to Cuellar | 4,140.20 mi (6,663.01 km) |
