| Barlad to Opwijk | 1,116.75 mi (1,797.24 km) |
| Barlad to Ostend | 1,173.49 mi (1,888.55 km) |
| Barlad to Oud-Heverlee | 1,094.62 mi (1,761.61 km) |
| Barlad to Oud-Turnhout | 1,086.26 mi (1,748.16 km) |
| Barlad to Oudenaarde | 1,140.91 mi (1,836.12 km) |
| Barlad to Oudenburg | 1,169.65 mi (1,882.38 km) |
| Barlad to Oupeye | 1,051.15 mi (1,691.67 km) |
| Barlad to Overijse | 1,099.92 mi (1,770.14 km) |
| Barlad to Overpelt | 1,066.60 mi (1,716.53 km) |
| Barlad to Paal | 1,074.96 mi (1,729.98 km) |
| Barlad to Peer | 1,064.02 mi (1,712.37 km) |
| Barlad to Pepinster | 1,042.19 mi (1,677.24 km) |
| Barlad to Peruwelz | 1,139.10 mi (1,833.21 km) |
| Barlad to Perwez | 1,086.26 mi (1,748.16 km) |
| Barlad to Philippeville | 1,094.53 mi (1,761.47 km) |
