| Hilo to Castrovillari | 8,287.16 mi (13,336.89 km) |
| Hilo to Catania | 8,434.09 mi (13,573.36 km) |
| Hilo to Catanzaro | 8,353.11 mi (13,443.04 km) |
| Hilo to Cattolica | 7,971.55 mi (12,828.96 km) |
| Hilo to Cava de' Tirreni | 8,213.05 mi (13,217.62 km) |
| Hilo to Cavallino | 8,268.39 mi (13,306.68 km) |
| Hilo to Cavarzere | 7,885.55 mi (12,690.56 km) |
| Hilo to Cave | 8,118.68 mi (13,065.76 km) |
| Hilo to Cavriago | 7,896.44 mi (12,708.09 km) |
| Hilo to Cavriglia | 7,987.37 mi (12,854.43 km) |
| Hilo to Cazzago San Martino | 7,831.18 mi (12,603.07 km) |
| Hilo to Ceccano | 8,140.02 mi (13,100.10 km) |
| Hilo to Cecina | 7,988.57 mi (12,856.35 km) |
| Hilo to Cefalu | 8,386.31 mi (13,496.47 km) |
| Hilo to Ceglie Messapico | 8,240.67 mi (13,262.08 km) |
