| Cities | Distance |
|---|---|
| Harwich to Opwijk | 142.27 mi (228.97 km) |
| Harwich to Ostend | 86.22 mi (138.75 km) |
| Harwich to Oud-Heverlee | 165.17 mi (265.81 km) |
| Harwich to Oud-Turnhout | 165.03 mi (265.59 km) |
| Harwich to Oudenaarde | 125.43 mi (201.86 km) |
| Harwich to Oudenburg | 90.76 mi (146.07 km) |
| Harwich to Oupeye | 207.07 mi (333.24 km) |
| Harwich to Overijse | 161.82 mi (260.42 km) |
| Harwich to Overpelt | 184.97 mi (297.67 km) |
| Harwich to Paal | 179.07 mi (288.18 km) |
| Harwich to Peer | 188.27 mi (303.00 km) |
| Harwich to Pepinster | 218.25 mi (351.24 km) |
| Harwich to Peruwelz | 140.14 mi (225.54 km) |
| Harwich to Perwez | 178.07 mi (286.57 km) |
| Harwich to Philippeville | 186.21 mi (299.67 km) |