| Holyhead to Menen | 372.17 mi (598.95 km) |
| Holyhead to Merchtem | 408.98 mi (658.20 km) |
| Holyhead to Merelbeke | 389.22 mi (626.39 km) |
| Holyhead to Merksem | 408.97 mi (658.18 km) |
| Holyhead to Merksplas | 422.52 mi (679.98 km) |
| Holyhead to Mettet | 446.89 mi (719.20 km) |
| Holyhead to Meulebeke | 373.11 mi (600.46 km) |
| Holyhead to Middelkerke | 347.52 mi (559.28 km) |
| Holyhead to Mol | 437.39 mi (703.91 km) |
| Holyhead to Mons | 415.60 mi (668.84 km) |
| Holyhead to Montignies-le-Tilleul | 434.28 mi (698.90 km) |
| Holyhead to Moorslede | 366.63 mi (590.03 km) |
| Holyhead to Moortebeek | 416.60 mi (670.45 km) |
| Holyhead to Morlanwelz-Mariemont | 426.24 mi (685.97 km) |
| Holyhead to Mortsel | 412.13 mi (663.27 km) |
