| Roman to Opwijk | 1,064.41 mi (1,713.01 km) |
| Roman to Ostend | 1,120.85 mi (1,803.84 km) |
| Roman to Oud-Heverlee | 1,042.47 mi (1,677.69 km) |
| Roman to Oud-Turnhout | 1,033.12 mi (1,662.65 km) |
| Roman to Oudenaarde | 1,088.88 mi (1,752.39 km) |
| Roman to Oudenburg | 1,117.08 mi (1,797.77 km) |
| Roman to Oupeye | 999.09 mi (1,607.88 km) |
| Roman to Overijse | 1,047.89 mi (1,686.41 km) |
| Roman to Overpelt | 1,013.57 mi (1,631.18 km) |
| Roman to Paal | 1,022.32 mi (1,645.26 km) |
| Roman to Peer | 1,011.14 mi (1,627.27 km) |
| Roman to Pepinster | 990.40 mi (1,593.89 km) |
| Roman to Peruwelz | 1,087.73 mi (1,750.53 km) |
| Roman to Perwez | 1,034.51 mi (1,664.88 km) |
| Roman to Philippeville | 1,043.70 mi (1,679.67 km) |
