| Colwyn Bay to Opwijk | 370.64 mi (596.49 km) |
| Colwyn Bay to Ostend | 314.02 mi (505.37 km) |
| Colwyn Bay to Oud-Heverlee | 393.54 mi (633.35 km) |
| Colwyn Bay to Oud-Turnhout | 391.07 mi (629.37 km) |
| Colwyn Bay to Oudenaarde | 352.68 mi (567.58 km) |
| Colwyn Bay to Oudenburg | 318.51 mi (512.59 km) |
| Colwyn Bay to Oupeye | 435.21 mi (700.40 km) |
| Colwyn Bay to Overijse | 390.14 mi (627.87 km) |
| Colwyn Bay to Overpelt | 411.00 mi (661.44 km) |
| Colwyn Bay to Paal | 406.58 mi (654.33 km) |
| Colwyn Bay to Peer | 414.84 mi (667.62 km) |
| Colwyn Bay to Pepinster | 446.54 mi (718.63 km) |
| Colwyn Bay to Peruwelz | 364.59 mi (586.75 km) |
| Colwyn Bay to Perwez | 406.31 mi (653.89 km) |
| Colwyn Bay to Philippeville | 412.11 mi (663.23 km) |
