| Hilo to Cividale del Friuli | 7,834.75 mi (12,608.81 km) |
| Hilo to Civita Castellana | 8,080.38 mi (13,004.11 km) |
| Hilo to Civitanova Marche | 8,027.15 mi (12,918.45 km) |
| Hilo to Civitavecchia | 8,086.24 mi (13,013.54 km) |
| Hilo to Civitella in Val di Chiana | 7,996.89 mi (12,869.75 km) |
| Hilo to Clusone | 7,810.12 mi (12,569.17 km) |
| Hilo to Coccaglio | 7,831.80 mi (12,604.07 km) |
| Hilo to Codigoro | 7,906.37 mi (12,724.07 km) |
| Hilo to Codogno | 7,855.11 mi (12,641.59 km) |
| Hilo to Codroipo | 7,839.50 mi (12,616.46 km) |
| Hilo to Cogoleto | 7,891.72 mi (12,700.50 km) |
| Hilo to Colle di Val d'Elsa | 7,990.87 mi (12,860.07 km) |
| Hilo to Colle Salvetti | 7,969.23 mi (12,825.23 km) |
| Hilo to Collecchio | 7,889.07 mi (12,696.24 km) |
| Hilo to Colleferro | 8,125.25 mi (13,076.32 km) |
