| Portage to Clacton-on-Sea | 3,894.43 mi (6,267.48 km) |
| Portage to Clay Cross | 3,756.03 mi (6,044.74 km) |
| Portage to Clayton | 3,723.26 mi (5,992.01 km) |
| Portage to Clayton le Moors | 3,702.20 mi (5,958.11 km) |
| Portage to Cleckheaton | 3,728.40 mi (6,000.28 km) |
| Portage to Cleethorpes | 3,796.45 mi (6,109.79 km) |
| Portage to Clevedon | 3,751.35 mi (6,037.22 km) |
| Portage to Clifton | 3,772.51 mi (6,071.27 km) |
| Portage to Clifton | 3,744.36 mi (6,025.97 km) |
| Portage to Cliftonville | 3,917.18 mi (6,304.09 km) |
| Portage to Clitheroe | 3,699.22 mi (5,953.32 km) |
| Portage to Clydebank | 3,571.85 mi (5,748.33 km) |
| Portage to Coalville | 3,770.56 mi (6,068.13 km) |
| Portage to Coatbridge | 3,586.29 mi (5,771.57 km) |
| Portage to Cobham | 3,849.46 mi (6,195.10 km) |
