| Rio Maior to Menen | 983.88 mi (1,583.41 km) |
| Rio Maior to Merchtem | 1,025.22 mi (1,649.94 km) |
| Rio Maior to Merelbeke | 1,012.62 mi (1,629.66 km) |
| Rio Maior to Merksem | 1,045.29 mi (1,682.23 km) |
| Rio Maior to Merksplas | 1,064.16 mi (1,712.61 km) |
| Rio Maior to Mettet | 1,006.61 mi (1,619.97 km) |
| Rio Maior to Meulebeke | 996.64 mi (1,603.94 km) |
| Rio Maior to Middelkerke | 995.95 mi (1,602.82 km) |
| Rio Maior to Mol | 1,062.71 mi (1,710.27 km) |
| Rio Maior to Mons | 990.88 mi (1,594.66 km) |
| Rio Maior to Montignies-le-Tilleul | 1,001.04 mi (1,611.02 km) |
| Rio Maior to Moorslede | 987.17 mi (1,588.69 km) |
| Rio Maior to Moortebeek | 1,022.81 mi (1,646.05 km) |
| Rio Maior to Morlanwelz-Mariemont | 999.61 mi (1,608.72 km) |
| Rio Maior to Mortsel | 1,042.22 mi (1,677.30 km) |
