| Great Baddow to Opwijk | 166.94 mi (268.67 km) |
| Great Baddow to Ostend | 109.27 mi (175.85 km) |
| Great Baddow to Oud-Heverlee | 189.89 mi (305.60 km) |
| Great Baddow to Oud-Turnhout | 194.42 mi (312.89 km) |
| Great Baddow to Oudenaarde | 146.51 mi (235.79 km) |
| Great Baddow to Oudenburg | 113.54 mi (182.72 km) |
| Great Baddow to Oupeye | 232.95 mi (374.90 km) |
| Great Baddow to Overijse | 185.71 mi (298.86 km) |
| Great Baddow to Overpelt | 214.11 mi (344.58 km) |
| Great Baddow to Paal | 206.59 mi (332.47 km) |
| Great Baddow to Peer | 216.88 mi (349.03 km) |
| Great Baddow to Pepinster | 243.48 mi (391.84 km) |
| Great Baddow to Peruwelz | 157.15 mi (252.91 km) |
| Great Baddow to Perwez | 201.34 mi (324.02 km) |
| Great Baddow to Philippeville | 204.83 mi (329.64 km) |
