| Upland to Opwijk | 5,579.81 mi (8,979.84 km) |
| Upland to Ostend | 5,527.97 mi (8,896.41 km) |
| Upland to Oud-Heverlee | 5,601.26 mi (9,014.36 km) |
| Upland to Oud-Turnhout | 5,587.36 mi (8,991.99 km) |
| Upland to Oudenaarde | 5,567.28 mi (8,959.67 km) |
| Upland to Oudenburg | 5,532.52 mi (8,903.73 km) |
| Upland to Oupeye | 5,637.42 mi (9,072.56 km) |
| Upland to Overijse | 5,599.57 mi (9,011.64 km) |
| Upland to Overpelt | 5,605.46 mi (9,021.12 km) |
| Upland to Paal | 5,606.75 mi (9,023.19 km) |
| Upland to Peer | 5,610.71 mi (9,029.57 km) |
| Upland to Pepinster | 5,649.74 mi (9,092.38 km) |
| Upland to Peruwelz | 5,582.80 mi (8,984.65 km) |
| Upland to Perwez | 5,616.07 mi (9,038.19 km) |
| Upland to Philippeville | 5,628.52 mi (9,058.23 km) |
