| Portsmouth to Menen | 183.77 mi (295.75 km) |
| Portsmouth to Merchtem | 232.13 mi (373.57 km) |
| Portsmouth to Merelbeke | 211.16 mi (339.83 km) |
| Portsmouth to Merksem | 242.10 mi (389.62 km) |
| Portsmouth to Merksplas | 261.22 mi (420.39 km) |
| Portsmouth to Mettet | 254.28 mi (409.22 km) |
| Portsmouth to Meulebeke | 190.93 mi (307.26 km) |
| Portsmouth to Middelkerke | 171.86 mi (276.58 km) |
| Portsmouth to Mol | 270.96 mi (436.08 km) |
| Portsmouth to Mons | 222.10 mi (357.43 km) |
| Portsmouth to Montignies-le-Tilleul | 241.65 mi (388.90 km) |
| Portsmouth to Moorslede | 181.11 mi (291.47 km) |
| Portsmouth to Moortebeek | 236.76 mi (381.02 km) |
| Portsmouth to Morlanwelz-Mariemont | 234.44 mi (377.29 km) |
| Portsmouth to Mortsel | 242.79 mi (390.73 km) |
