| Petersberg to Opwijk | 243.33 mi (391.59 km) |
| Petersberg to Ostend | 299.59 mi (482.14 km) |
| Petersberg to Oud-Heverlee | 221.72 mi (356.83 km) |
| Petersberg to Oud-Turnhout | 212.45 mi (341.90 km) |
| Petersberg to Oudenaarde | 268.27 mi (431.74 km) |
| Petersberg to Oudenburg | 295.82 mi (476.07 km) |
| Petersberg to Oupeye | 178.75 mi (287.68 km) |
| Petersberg to Overijse | 227.40 mi (365.97 km) |
| Petersberg to Overpelt | 192.68 mi (310.09 km) |
| Petersberg to Paal | 201.05 mi (323.56 km) |
| Petersberg to Peer | 190.01 mi (305.79 km) |
| Petersberg to Pepinster | 171.14 mi (275.42 km) |
| Petersberg to Peruwelz | 269.26 mi (433.34 km) |
| Petersberg to Perwez | 214.99 mi (345.99 km) |
| Petersberg to Philippeville | 228.99 mi (368.52 km) |
