| Clemson to Clacton-on-Sea | 4,142.52 mi (6,666.75 km) |
| Clemson to Clay Cross | 4,010.95 mi (6,455.00 km) |
| Clemson to Clayton | 3,983.15 mi (6,410.26 km) |
| Clemson to Clayton le Moors | 3,960.86 mi (6,374.39 km) |
| Clemson to Cleckheaton | 3,987.94 mi (6,417.98 km) |
| Clemson to Cleethorpes | 4,057.95 mi (6,530.64 km) |
| Clemson to Clevedon | 3,986.77 mi (6,416.09 km) |
| Clemson to Clifton | 4,025.51 mi (6,478.44 km) |
| Clemson to Clifton | 4,007.49 mi (6,449.43 km) |
| Clemson to Cliftonville | 4,162.25 mi (6,698.49 km) |
| Clemson to Clitheroe | 3,958.79 mi (6,371.05 km) |
| Clemson to Clydebank | 3,847.13 mi (6,191.36 km) |
| Clemson to Coalville | 4,021.46 mi (6,471.92 km) |
| Clemson to Coatbridge | 3,861.84 mi (6,215.03 km) |
| Clemson to Cobham | 4,089.57 mi (6,581.53 km) |
