| Boulder to Menen | 4,820.71 mi (7,758.18 km) |
| Boulder to Merchtem | 4,850.53 mi (7,806.18 km) |
| Boulder to Merelbeke | 4,832.90 mi (7,777.79 km) |
| Boulder to Merksem | 4,845.21 mi (7,797.62 km) |
| Boulder to Merksplas | 4,853.76 mi (7,811.38 km) |
| Boulder to Mettet | 4,893.55 mi (7,875.41 km) |
| Boulder to Meulebeke | 4,819.54 mi (7,756.31 km) |
| Boulder to Middelkerke | 4,793.54 mi (7,714.46 km) |
| Boulder to Mol | 4,870.20 mi (7,837.83 km) |
| Boulder to Mons | 4,863.91 mi (7,827.70 km) |
| Boulder to Montignies-le-Tilleul | 4,881.48 mi (7,855.99 km) |
| Boulder to Moorslede | 4,814.57 mi (7,748.30 km) |
| Boulder to Moortebeek | 4,859.02 mi (7,819.83 km) |
| Boulder to Morlanwelz-Mariemont | 4,873.46 mi (7,843.08 km) |
| Boulder to Mortsel | 4,849.43 mi (7,804.41 km) |
