| Opalenica to Menen | 579.67 mi (932.89 km) |
| Opalenica to Merchtem | 529.81 mi (852.64 km) |
| Opalenica to Merelbeke | 549.57 mi (884.45 km) |
| Opalenica to Merksem | 516.48 mi (831.19 km) |
| Opalenica to Merksplas | 496.69 mi (799.35 km) |
| Opalenica to Mettet | 525.34 mi (845.45 km) |
| Opalenica to Meulebeke | 569.95 mi (917.24 km) |
| Opalenica to Middelkerke | 585.82 mi (942.78 km) |
| Opalenica to Mol | 488.96 mi (786.90 km) |
| Opalenica to Mons | 551.86 mi (888.13 km) |
| Opalenica to Montignies-le-Tilleul | 535.25 mi (861.41 km) |
| Opalenica to Moorslede | 580.43 mi (934.10 km) |
| Opalenica to Moortebeek | 527.41 mi (848.79 km) |
| Opalenica to Morlanwelz-Mariemont | 540.03 mi (869.09 km) |
| Opalenica to Mortsel | 516.61 mi (831.40 km) |
