| Colchester to Opwijk | 155.07 mi (249.56 km) |
| Colchester to Ostend | 98.07 mi (157.83 km) |
| Colchester to Oud-Heverlee | 178.05 mi (286.54 km) |
| Colchester to Oud-Turnhout | 179.52 mi (288.91 km) |
| Colchester to Oudenaarde | 136.78 mi (220.13 km) |
| Colchester to Oudenburg | 102.55 mi (165.04 km) |
| Colchester to Oupeye | 220.44 mi (354.77 km) |
| Colchester to Overijse | 174.39 mi (280.65 km) |
| Colchester to Overpelt | 199.40 mi (320.91 km) |
| Colchester to Paal | 192.96 mi (310.55 km) |
| Colchester to Peer | 202.54 mi (325.96 km) |
| Colchester to Pepinster | 231.41 mi (372.42 km) |
| Colchester to Peruwelz | 149.95 mi (241.31 km) |
| Colchester to Perwez | 190.45 mi (306.50 km) |
| Colchester to Philippeville | 196.84 mi (316.78 km) |
