| Hilo to Cocentaina | 8,078.44 mi (13,000.99 km) |
| Hilo to Coin | 8,088.71 mi (13,017.52 km) |
| Hilo to Colindres | 7,721.13 mi (12,425.96 km) |
| Hilo to Collado-Villalba | 7,873.51 mi (12,671.19 km) |
| Hilo to Colmenar Viejo | 7,878.28 mi (12,678.87 km) |
| Hilo to Colmenarejo | 7,877.63 mi (12,677.81 km) |
| Hilo to Conil de la Frontera | 8,072.57 mi (12,991.55 km) |
| Hilo to Consuegra | 7,954.29 mi (12,801.20 km) |
| Hilo to Corbera de Llobregat | 7,965.59 mi (12,819.37 km) |
| Hilo to Cordoba | 8,016.05 mi (12,900.58 km) |
| Hilo to Coria del Rio | 8,014.50 mi (12,898.09 km) |
| Hilo to Crevillente | 8,099.88 mi (13,035.50 km) |
| Hilo to Cuarte de Huerva | 7,892.06 mi (12,701.05 km) |
| Hilo to Cubellas | 7,973.16 mi (12,831.56 km) |
| Hilo to Cuellar | 7,819.61 mi (12,584.44 km) |
