| Peterborough to Opwijk | 218.88 mi (352.25 km) |
| Peterborough to Ostend | 163.33 mi (262.85 km) |
| Peterborough to Oud-Heverlee | 241.64 mi (388.88 km) |
| Peterborough to Oud-Turnhout | 238.44 mi (383.73 km) |
| Peterborough to Oudenaarde | 202.55 mi (325.97 km) |
| Peterborough to Oudenburg | 167.88 mi (270.17 km) |
| Peterborough to Oupeye | 282.81 mi (455.14 km) |
| Peterborough to Overijse | 238.56 mi (383.92 km) |
| Peterborough to Overpelt | 258.38 mi (415.82 km) |
| Peterborough to Paal | 253.98 mi (408.74 km) |
| Peterborough to Peer | 262.19 mi (421.95 km) |
| Peterborough to Pepinster | 294.28 mi (473.59 km) |
| Peterborough to Peruwelz | 216.74 mi (348.81 km) |
| Peterborough to Perwez | 254.90 mi (410.22 km) |
| Peterborough to Philippeville | 263.22 mi (423.61 km) |
