| Hilo to Cognac | 7,649.73 mi (12,311.05 km) |
| Hilo to Cogolin | 7,933.92 mi (12,768.42 km) |
| Hilo to Colmar | 7,629.80 mi (12,278.97 km) |
| Hilo to Colombes | 7,495.02 mi (12,062.08 km) |
| Hilo to Colomiers | 7,814.64 mi (12,576.45 km) |
| Hilo to Combs-la-Ville | 7,516.56 mi (12,096.73 km) |
| Hilo to Comines | 7,389.94 mi (11,892.97 km) |
| Hilo to Compiegne | 7,473.33 mi (12,027.16 km) |
| Hilo to Concarneau | 7,438.58 mi (11,971.25 km) |
| Hilo to Conde-sur-l'Escaut | 7,419.30 mi (11,940.21 km) |
| Hilo to Conflans-Sainte-Honorine | 7,487.52 mi (12,050.00 km) |
| Hilo to Corbas | 7,749.73 mi (12,471.98 km) |
| Hilo to Corbeil-Essonnes | 7,518.80 mi (12,100.33 km) |
| Hilo to Cormeilles-en-Parisis | 7,490.93 mi (12,055.49 km) |
| Hilo to Cosne sur Loire | 7,603.53 mi (12,236.71 km) |
