| Hilo to Conyers (Georgia) | 4,411.60 mi (7,099.79 km) |
| Hilo to Cookeville (Tennessee) | 4,308.05 mi (6,933.13 km) |
| Hilo to Coolidge (Arizona) | 2,826.26 mi (4,548.43 km) |
| Hilo to Coon Rapids (Minnesota) | 3,899.51 mi (6,275.65 km) |
| Hilo to Cooper City (Florida) | 4,719.18 mi (7,594.78 km) |
| Hilo to Coos Bay (Oregon) | 2,420.12 mi (3,894.81 km) |
| Hilo to Copiague (New York) | 4,917.52 mi (7,913.99 km) |
| Hilo to Coppell (Texas) | 3,666.94 mi (5,901.37 km) |
| Hilo to Copperas Cove (Texas) | 3,615.78 mi (5,819.03 km) |
| Hilo to Coral Gables (Florida) | 4,725.05 mi (7,604.23 km) |
| Hilo to Coral Springs (Florida) | 4,717.60 mi (7,592.24 km) |
| Hilo to Coral Terrace (Florida) | 4,722.39 mi (7,599.96 km) |
| Hilo to Coralville (Iowa) | 3,970.02 mi (6,389.13 km) |
| Hilo to Coram (New York) | 4,934.83 mi (7,941.84 km) |
| Hilo to Corcoran (California) | 2,428.26 mi (3,907.91 km) |
