| Olecko to Menen | 843.75 mi (1,357.88 km) |
| Olecko to Merchtem | 794.48 mi (1,278.60 km) |
| Olecko to Merelbeke | 813.04 mi (1,308.47 km) |
| Olecko to Merksem | 778.97 mi (1,253.64 km) |
| Olecko to Merksplas | 758.75 mi (1,221.09 km) |
| Olecko to Mettet | 795.83 mi (1,280.76 km) |
| Olecko to Meulebeke | 833.01 mi (1,340.59 km) |
| Olecko to Middelkerke | 845.87 mi (1,361.30 km) |
| Olecko to Mol | 753.32 mi (1,212.36 km) |
| Olecko to Mons | 820.16 mi (1,319.92 km) |
| Olecko to Montignies-le-Tilleul | 804.81 mi (1,295.22 km) |
| Olecko to Moorslede | 843.59 mi (1,357.62 km) |
| Olecko to Moortebeek | 793.26 mi (1,276.63 km) |
| Olecko to Morlanwelz-Mariemont | 808.84 mi (1,301.71 km) |
| Olecko to Mortsel | 779.89 mi (1,255.11 km) |
