| Greenock to Clacton-on-Sea | 374.59 mi (602.85 km) |
| Greenock to Clay Cross | 234.68 mi (377.68 km) |
| Greenock to Clayton | 190.26 mi (306.19 km) |
| Greenock to Clayton le Moors | 177.59 mi (285.81 km) |
| Greenock to Cleckheaton | 195.73 mi (314.99 km) |
| Greenock to Cleethorpes | 251.29 mi (404.42 km) |
| Greenock to Clevedon | 321.37 mi (517.19 km) |
| Greenock to Clifton | 255.06 mi (410.47 km) |
| Greenock to Clifton | 199.54 mi (321.13 km) |
| Greenock to Cliftonville | 403.57 mi (649.48 km) |
| Greenock to Clitheroe | 171.79 mi (276.46 km) |
| Greenock to Clydebank | 14.53 mi (23.38 km) |
| Greenock to Coalville | 261.46 mi (420.77 km) |
| Greenock to Coatbridge | 29.23 mi (47.04 km) |
| Greenock to Cobham | 365.59 mi (588.36 km) |
