| Caister-on-Sea to Menen | 141.30 mi (227.40 km) |
| Caister-on-Sea to Merchtem | 157.94 mi (254.18 km) |
| Caister-on-Sea to Merelbeke | 142.93 mi (230.02 km) |
| Caister-on-Sea to Merksem | 150.88 mi (242.83 km) |
| Caister-on-Sea to Merksplas | 160.09 mi (257.64 km) |
| Caister-on-Sea to Mettet | 204.37 mi (328.91 km) |
| Caister-on-Sea to Meulebeke | 135.00 mi (217.25 km) |
| Caister-on-Sea to Middelkerke | 111.38 mi (179.25 km) |
| Caister-on-Sea to Mol | 176.26 mi (283.66 km) |
| Caister-on-Sea to Mons | 179.42 mi (288.75 km) |
| Caister-on-Sea to Montignies-le-Tilleul | 193.71 mi (311.74 km) |
| Caister-on-Sea to Moorslede | 134.26 mi (216.07 km) |
| Caister-on-Sea to Moortebeek | 166.79 mi (268.41 km) |
| Caister-on-Sea to Morlanwelz-Mariemont | 186.16 mi (299.60 km) |
| Caister-on-Sea to Mortsel | 155.21 mi (249.78 km) |
