| Hilliard to Cadillac (Michigan) | 313.27 mi (504.17 km) |
| Hilliard to Caguas (Puerto Rico) | 1,819.31 mi (2,927.90 km) |
| Hilliard to Cahokia (Illinois) | 388.80 mi (625.71 km) |
| Hilliard to Calabasas (California) | 1,985.53 mi (3,195.40 km) |
| Hilliard to Caldwell (Idaho) | 1,730.47 mi (2,784.92 km) |
| Hilliard to Caledonia (Wisconsin) | 310.11 mi (499.08 km) |
| Hilliard to Calera (Alabama) | 517.12 mi (832.23 km) |
| Hilliard to Calexico (California) | 1,858.17 mi (2,990.44 km) |
| Hilliard to Calhoun (Georgia) | 395.37 mi (636.28 km) |
| Hilliard to California (Maryland) | 376.48 mi (605.89 km) |
| Hilliard to California City (California) | 1,917.60 mi (3,086.08 km) |
| Hilliard to Callaway (Florida) | 697.29 mi (1,122.17 km) |
| Hilliard to Calumet City (Illinois) | 254.19 mi (409.09 km) |
| Hilliard to Calverton (Maryland) | 337.55 mi (543.24 km) |
| Hilliard to Camano (Washington) | 2,005.68 mi (3,227.83 km) |
