| Cities | Distance |
|---|---|
| Duffel to Ostend | 69.75 mi (112.25 km) |
| Duffel to Oud-Heverlee | 19.55 mi (31.46 km) |
| Duffel to Oud-Turnhout | 25.14 mi (40.46 km) |
| Duffel to Oudenaarde | 43.46 mi (69.94 km) |
| Duffel to Oudenburg | 66.00 mi (106.21 km) |
| Duffel to Oupeye | 56.05 mi (90.20 km) |
| Duffel to Overijse | 21.89 mi (35.23 km) |
| Duffel to Overpelt | 39.82 mi (64.09 km) |
| Duffel to Paal | 28.79 mi (46.34 km) |
| Duffel to Peer | 40.70 mi (65.50 km) |
| Duffel to Pepinster | 67.64 mi (108.86 km) |
| Duffel to Peruwelz | 57.31 mi (92.24 km) |
| Duffel to Perwez | 35.36 mi (56.91 km) |
| Duffel to Philippeville | 62.20 mi (100.10 km) |
| Duffel to Plombieres | 67.38 mi (108.43 km) |