| Opava to Menen | 653.10 mi (1,051.06 km) |
| Opava to Merchtem | 604.73 mi (973.22 km) |
| Opava to Merelbeke | 625.80 mi (1,007.13 km) |
| Opava to Merksem | 596.52 mi (960.00 km) |
| Opava to Merksplas | 578.80 mi (931.49 km) |
| Opava to Mettet | 586.59 mi (944.03 km) |
| Opava to Meulebeke | 645.89 mi (1,039.46 km) |
| Opava to Middelkerke | 666.49 mi (1,072.61 km) |
| Opava to Mol | 567.09 mi (912.64 km) |
| Opava to Mons | 617.34 mi (993.52 km) |
| Opava to Montignies-le-Tilleul | 598.46 mi (963.12 km) |
| Opava to Moorslede | 655.64 mi (1,055.14 km) |
| Opava to Moortebeek | 599.99 mi (965.60 km) |
| Opava to Morlanwelz-Mariemont | 604.89 mi (973.47 km) |
| Opava to Mortsel | 595.13 mi (957.77 km) |
