| Duffel to Merchtem | 15.38 mi (24.75 km) |
| Duffel to Merelbeke | 34.01 mi (54.73 km) |
| Duffel to Merksem | 10.39 mi (16.72 km) |
| Duffel to Merksplas | 23.85 mi (38.38 km) |
| Duffel to Mettet | 54.30 mi (87.38 km) |
| Duffel to Meulebeke | 54.44 mi (87.62 km) |
| Duffel to Middelkerke | 73.81 mi (118.79 km) |
| Duffel to Mol | 26.64 mi (42.87 km) |
| Duffel to Mons | 51.28 mi (82.53 km) |
| Duffel to Montignies-le-Tilleul | 49.86 mi (80.24 km) |
| Duffel to Moorslede | 64.86 mi (104.38 km) |
| Duffel to Moortebeek | 18.64 mi (29.99 km) |
| Duffel to Morlanwelz-Mariemont | 46.59 mi (74.97 km) |
| Duffel to Mortsel | 5.09 mi (8.20 km) |
| Duffel to Mouscron | 62.04 mi (99.84 km) |
