| Hilo to Cibolo (Texas) | 3,602.39 mi (5,797.49 km) |
| Hilo to Cicero (Illinois) | 4,167.85 mi (6,707.51 km) |
| Hilo to Cimarron Hills (Colorado) | 3,264.43 mi (5,253.59 km) |
| Hilo to Cincinnati (Ohio) | 4,346.34 mi (6,994.75 km) |
| Hilo to Cinco Ranch (Texas) | 3,748.59 mi (6,032.77 km) |
| Hilo to Circleville (Ohio) | 4,427.58 mi (7,125.49 km) |
| Hilo to Citrus (California) | 2,481.54 mi (3,993.65 km) |
| Hilo to Citrus Heights (California) | 2,403.46 mi (3,868.00 km) |
| Hilo to Citrus Park (Florida) | 4,554.52 mi (7,329.80 km) |
| Hilo to Claiborne (Louisiana) | 3,946.33 mi (6,351.00 km) |
| Hilo to Claremont (California) | 2,491.35 mi (4,009.45 km) |
| Hilo to Claremont (New Hampshire) | 4,938.27 mi (7,947.37 km) |
| Hilo to Claremore (Oklahoma) | 3,745.43 mi (6,027.69 km) |
| Hilo to Clarksburg (Maryland) | 4,731.08 mi (7,613.93 km) |
| Hilo to Clarksburg (West Virginia) | 4,568.34 mi (7,352.04 km) |
