| Hilo to Carrollwood (Florida) | 4,557.59 mi (7,334.74 km) |
| Hilo to Carson (California) | 2,456.50 mi (3,953.36 km) |
| Hilo to Carson City (Nevada) | 2,492.01 mi (4,010.50 km) |
| Hilo to Carteret (New Jersey) | 4,875.35 mi (7,846.12 km) |
| Hilo to Cartersville (Georgia) | 4,361.73 mi (7,019.52 km) |
| Hilo to Carthage (Missouri) | 3,817.44 mi (6,143.57 km) |
| Hilo to Cary (Illinois) | 4,142.56 mi (6,666.80 km) |
| Hilo to Cary (North Carolina) | 4,682.48 mi (7,535.72 km) |
| Hilo to Casa de Oro-Mount Helix (California) | 2,512.76 mi (4,043.89 km) |
| Hilo to Casa Grande (Arizona) | 2,812.37 mi (4,526.07 km) |
| Hilo to Casas Adobes (Arizona) | 2,850.77 mi (4,587.87 km) |
| Hilo to Cascades (Virginia) | 4,726.42 mi (7,606.45 km) |
| Hilo to Casper (Wyoming) | 3,235.79 mi (5,207.51 km) |
| Hilo to Casselberry (Florida) | 4,621.31 mi (7,437.28 km) |
| Hilo to Castaic (California) | 2,446.86 mi (3,937.85 km) |
