| Barrow in Furness to Opwijk | 379.36 mi (610.52 km) |
| Barrow in Furness to Ostend | 325.44 mi (523.75 km) |
| Barrow in Furness to Oud-Heverlee | 401.67 mi (646.43 km) |
| Barrow in Furness to Oud-Turnhout | 393.79 mi (633.74 km) |
| Barrow in Furness to Oudenaarde | 364.79 mi (587.07 km) |
| Barrow in Furness to Oudenburg | 330.00 mi (531.09 km) |
| Barrow in Furness to Oupeye | 441.12 mi (709.91 km) |
| Barrow in Furness to Overijse | 399.18 mi (642.42 km) |
| Barrow in Furness to Overpelt | 413.31 mi (665.16 km) |
| Barrow in Furness to Paal | 411.21 mi (661.77 km) |
| Barrow in Furness to Peer | 417.78 mi (672.35 km) |
| Barrow in Furness to Pepinster | 453.02 mi (729.06 km) |
| Barrow in Furness to Peruwelz | 379.70 mi (611.06 km) |
| Barrow in Furness to Perwez | 415.68 mi (668.96 km) |
| Barrow in Furness to Philippeville | 425.81 mi (685.27 km) |
