| Clacton-on-Sea to Mitcham | 61.89 mi (99.60 km) |
| Clacton-on-Sea to Mold | 203.51 mi (327.52 km) |
| Clacton-on-Sea to Molesey | 70.16 mi (112.91 km) |
| Clacton-on-Sea to Monkseaton | 248.89 mi (400.54 km) |
| Clacton-on-Sea to Monmouth | 165.16 mi (265.79 km) |
| Clacton-on-Sea to Montrose | 369.53 mi (594.71 km) |
| Clacton-on-Sea to Morden | 63.54 mi (102.26 km) |
| Clacton-on-Sea to Morecambe | 229.74 mi (369.73 km) |
| Clacton-on-Sea to Moreton | 210.37 mi (338.56 km) |
| Clacton-on-Sea to Morley | 177.42 mi (285.53 km) |
| Clacton-on-Sea to Morpeth | 260.72 mi (419.59 km) |
| Clacton-on-Sea to Morriston | 217.73 mi (350.41 km) |
| Clacton-on-Sea to Mosbrough | 149.37 mi (240.39 km) |
| Clacton-on-Sea to Mossley | 178.81 mi (287.77 km) |
| Clacton-on-Sea to Moston | 183.47 mi (295.26 km) |
