| Barton upon Irwell to Opwijk | 326.56 mi (525.55 km) |
| Barton upon Irwell to Ostend | 271.58 mi (437.07 km) |
| Barton upon Irwell to Oud-Heverlee | 349.15 mi (561.90 km) |
| Barton upon Irwell to Oud-Turnhout | 343.45 mi (552.73 km) |
| Barton upon Irwell to Oudenaarde | 310.85 mi (500.26 km) |
| Barton upon Irwell to Oudenburg | 276.13 mi (444.40 km) |
| Barton upon Irwell to Oupeye | 389.54 mi (626.90 km) |
| Barton upon Irwell to Overijse | 346.32 mi (557.35 km) |
| Barton upon Irwell to Overpelt | 363.21 mi (584.53 km) |
| Barton upon Irwell to Paal | 360.08 mi (579.50 km) |
| Barton upon Irwell to Peer | 367.41 mi (591.28 km) |
| Barton upon Irwell to Pepinster | 401.23 mi (645.72 km) |
| Barton upon Irwell to Peruwelz | 324.98 mi (523.01 km) |
| Barton upon Irwell to Perwez | 362.74 mi (583.78 km) |
| Barton upon Irwell to Philippeville | 371.56 mi (597.97 km) |
