| Basingstoke to Opwijk | 229.50 mi (369.34 km) |
| Basingstoke to Ostend | 173.31 mi (278.91 km) |
| Basingstoke to Oud-Heverlee | 251.66 mi (405.01 km) |
| Basingstoke to Oud-Turnhout | 262.26 mi (422.06 km) |
| Basingstoke to Oudenaarde | 205.56 mi (330.81 km) |
| Basingstoke to Oudenburg | 176.94 mi (284.76 km) |
| Basingstoke to Oupeye | 295.17 mi (475.02 km) |
| Basingstoke to Overijse | 246.49 mi (396.68 km) |
| Basingstoke to Overpelt | 281.27 mi (452.66 km) |
| Basingstoke to Paal | 271.69 mi (437.24 km) |
| Basingstoke to Peer | 283.25 mi (455.85 km) |
| Basingstoke to Pepinster | 304.50 mi (490.04 km) |
| Basingstoke to Peruwelz | 210.02 mi (338.00 km) |
| Basingstoke to Perwez | 260.69 mi (419.54 km) |
| Basingstoke to Philippeville | 257.24 mi (413.99 km) |
