| Waltham to Clacton-on-Sea | 3,322.73 mi (5,347.42 km) |
| Waltham to Clay Cross | 3,191.52 mi (5,136.26 km) |
| Waltham to Clayton | 3,164.10 mi (5,092.12 km) |
| Waltham to Clayton le Moors | 3,141.74 mi (5,056.13 km) |
| Waltham to Cleckheaton | 3,168.86 mi (5,099.79 km) |
| Waltham to Cleethorpes | 3,238.97 mi (5,212.62 km) |
| Waltham to Clevedon | 3,166.92 mi (5,096.66 km) |
| Waltham to Clifton | 3,205.97 mi (5,159.50 km) |
| Waltham to Clifton | 3,188.70 mi (5,131.72 km) |
| Waltham to Cliftonville | 3,342.39 mi (5,379.06 km) |
| Waltham to Clitheroe | 3,139.73 mi (5,052.91 km) |
| Waltham to Clydebank | 3,030.12 mi (4,876.50 km) |
| Waltham to Coalville | 3,201.82 mi (5,152.83 km) |
| Waltham to Coatbridge | 3,044.83 mi (4,900.18 km) |
| Waltham to Cobham | 3,269.69 mi (5,262.05 km) |
