| Cities | Distance |
|---|---|
| Hamm to Opwijk | 164.48 mi (264.71 km) |
| Hamm to Ostend | 213.16 mi (343.06 km) |
| Hamm to Oud-Heverlee | 148.31 mi (238.68 km) |
| Hamm to Oud-Turnhout | 124.46 mi (200.31 km) |
| Hamm to Oudenaarde | 191.14 mi (307.61 km) |
| Hamm to Oudenburg | 210.29 mi (338.43 km) |
| Hamm to Oupeye | 115.73 mi (186.25 km) |
| Hamm to Overijse | 155.05 mi (249.52 km) |
| Hamm to Overpelt | 108.25 mi (174.21 km) |
| Hamm to Paal | 122.43 mi (197.03 km) |
| Hamm to Peer | 108.71 mi (174.95 km) |
| Hamm to Pepinster | 116.07 mi (186.80 km) |
| Hamm to Peruwelz | 200.55 mi (322.75 km) |
| Hamm to Perwez | 149.24 mi (240.18 km) |
| Hamm to Philippeville | 175.27 mi (282.07 km) |