| Adjud to Opwijk | 1,099.31 mi (1,769.17 km) |
| Adjud to Ostend | 1,156.20 mi (1,860.73 km) |
| Adjud to Oud-Heverlee | 1,077.08 mi (1,733.39 km) |
| Adjud to Oud-Turnhout | 1,069.30 mi (1,720.87 km) |
| Adjud to Oudenaarde | 1,123.29 mi (1,807.76 km) |
| Adjud to Oudenburg | 1,152.33 mi (1,854.49 km) |
| Adjud to Oupeye | 1,033.58 mi (1,663.38 km) |
| Adjud to Overijse | 1,082.31 mi (1,741.81 km) |
| Adjud to Overpelt | 1,049.59 mi (1,689.14 km) |
| Adjud to Paal | 1,057.71 mi (1,702.21 km) |
| Adjud to Peer | 1,046.91 mi (1,684.84 km) |
| Adjud to Pepinster | 1,024.48 mi (1,648.73 km) |
| Adjud to Peruwelz | 1,121.13 mi (1,804.28 km) |
| Adjud to Perwez | 1,068.50 mi (1,719.58 km) |
| Adjud to Philippeville | 1,076.29 mi (1,732.12 km) |
