| Cities | Distance |
|---|---|
| Regen to Opwijk | 420.76 mi (677.15 km) |
| Regen to Ostend | 478.39 mi (769.89 km) |
| Regen to Oud-Heverlee | 397.99 mi (640.50 km) |
| Regen to Oud-Turnhout | 395.45 mi (636.42 km) |
| Regen to Oudenaarde | 443.34 mi (713.49 km) |
| Regen to Oudenburg | 474.26 mi (763.24 km) |
| Regen to Oupeye | 354.62 mi (570.70 km) |
| Regen to Overijse | 402.70 mi (648.09 km) |
| Regen to Overpelt | 375.48 mi (604.28 km) |
| Regen to Paal | 381.17 mi (613.44 km) |
| Regen to Peer | 371.91 mi (598.53 km) |
| Regen to Pepinster | 344.55 mi (554.50 km) |
| Regen to Peruwelz | 439.31 mi (707.00 km) |
| Regen to Perwez | 388.03 mi (624.47 km) |
| Regen to Philippeville | 393.59 mi (633.42 km) |