| Boulogne-sur-Mer to Lubbeek | 141.29 mi (227.39 km) |
| Boulogne-sur-Mer to Lummen | 157.37 mi (253.26 km) |
| Boulogne-sur-Mer to Maaseik | 183.51 mi (295.33 km) |
| Boulogne-sur-Mer to Machelen | 123.83 mi (199.29 km) |
| Boulogne-sur-Mer to Maldegem | 85.63 mi (137.81 km) |
| Boulogne-sur-Mer to Malmedy | 194.32 mi (312.73 km) |
| Boulogne-sur-Mer to Manage | 115.86 mi (186.46 km) |
| Boulogne-sur-Mer to Marche-en-Famenne | 167.26 mi (269.17 km) |
| Boulogne-sur-Mer to Mariakerke | 92.96 mi (149.60 km) |
| Boulogne-sur-Mer to Mechelen | 126.66 mi (203.84 km) |
| Boulogne-sur-Mer to Mechelen-aan-de-Maas | 179.23 mi (288.44 km) |
| Boulogne-sur-Mer to Meerhout | 153.63 mi (247.24 km) |
| Boulogne-sur-Mer to Meise | 119.49 mi (192.31 km) |
| Boulogne-sur-Mer to Melle | 97.15 mi (156.35 km) |
| Boulogne-sur-Mer to Melsele | 120.94 mi (194.64 km) |
