| Harrow Weald to Clacton-on-Sea | 64.89 mi (104.43 km) |
| Harrow Weald to Clay Cross | 116.89 mi (188.12 km) |
| Harrow Weald to Clayton | 162.65 mi (261.76 km) |
| Harrow Weald to Clayton le Moors | 172.71 mi (277.95 km) |
| Harrow Weald to Cleckheaton | 157.54 mi (253.53 km) |
| Harrow Weald to Cleethorpes | 135.34 mi (217.81 km) |
| Harrow Weald to Clevedon | 108.73 mi (174.98 km) |
| Harrow Weald to Clifton | 96.56 mi (155.40 km) |
| Harrow Weald to Clifton | 166.66 mi (268.22 km) |
| Harrow Weald to Cliftonville | 76.47 mi (123.06 km) |
| Harrow Weald to Clitheroe | 178.62 mi (287.45 km) |
| Harrow Weald to Clydebank | 339.90 mi (547.02 km) |
| Harrow Weald to Coalville | 88.85 mi (142.98 km) |
| Harrow Weald to Coatbridge | 330.48 mi (531.85 km) |
| Harrow Weald to Cobham | 19.24 mi (30.96 km) |
