| Rockville to Clacton-on-Sea | 3,706.73 mi (5,965.41 km) |
| Rockville to Clay Cross | 3,575.07 mi (5,753.52 km) |
| Rockville to Clayton | 3,547.28 mi (5,708.79 km) |
| Rockville to Clayton le Moors | 3,524.99 mi (5,672.92 km) |
| Rockville to Cleckheaton | 3,552.07 mi (5,716.51 km) |
| Rockville to Cleethorpes | 3,622.09 mi (5,829.19 km) |
| Rockville to Clevedon | 3,551.31 mi (5,715.28 km) |
| Rockville to Clifton | 3,589.64 mi (5,776.97 km) |
| Rockville to Clifton | 3,571.65 mi (5,748.01 km) |
| Rockville to Cliftonville | 3,726.53 mi (5,997.27 km) |
| Rockville to Clitheroe | 3,522.92 mi (5,669.58 km) |
| Rockville to Clydebank | 3,411.68 mi (5,490.57 km) |
| Rockville to Coalville | 3,585.61 mi (5,770.48 km) |
| Rockville to Coatbridge | 3,426.39 mi (5,514.24 km) |
| Rockville to Cobham | 3,653.98 mi (5,880.51 km) |
