| Hercules to Cadillac (Michigan) | 1,947.92 mi (3,134.88 km) |
| Hercules to Caguas (Puerto Rico) | 3,627.31 mi (5,837.60 km) |
| Hercules to Cahokia (Illinois) | 1,731.18 mi (2,786.07 km) |
| Hercules to Calabasas (California) | 334.00 mi (537.51 km) |
| Hercules to Caldwell (Idaho) | 487.00 mi (783.76 km) |
| Hercules to Caledonia (Wisconsin) | 1,825.89 mi (2,938.49 km) |
| Hercules to Calera (Alabama) | 2,011.73 mi (3,237.57 km) |
| Hercules to Calexico (California) | 529.25 mi (851.74 km) |
| Hercules to Calhoun (Georgia) | 2,079.56 mi (3,346.74 km) |
| Hercules to California (Maryland) | 2,460.29 mi (3,959.46 km) |
| Hercules to California City (California) | 312.84 mi (503.46 km) |
| Hercules to Callaway (Florida) | 2,154.67 mi (3,467.60 km) |
| Hercules to Calumet City (Illinois) | 1,846.22 mi (2,971.20 km) |
| Hercules to Calverton (Maryland) | 2,424.16 mi (3,901.31 km) |
| Hercules to Camano (Washington) | 703.46 mi (1,132.11 km) |
