| Duffel to Lummen | 30.76 mi (49.50 km) |
| Duffel to Maaseik | 55.05 mi (88.60 km) |
| Duffel to Machelen | 13.56 mi (21.82 km) |
| Duffel to Maldegem | 47.46 mi (76.38 km) |
| Duffel to Malmedy | 80.79 mi (130.02 km) |
| Duffel to Manage | 43.26 mi (69.63 km) |
| Duffel to Marche-en-Famenne | 70.74 mi (113.84 km) |
| Duffel to Mariakerke | 36.53 mi (58.79 km) |
| Duffel to Mechelen | 5.23 mi (8.42 km) |
| Duffel to Mechelen-aan-de-Maas | 52.00 mi (83.68 km) |
| Duffel to Meerhout | 24.68 mi (39.72 km) |
| Duffel to Meise | 14.01 mi (22.54 km) |
| Duffel to Melle | 31.89 mi (51.32 km) |
| Duffel to Melsele | 13.18 mi (21.21 km) |
| Duffel to Menen | 64.26 mi (103.42 km) |
