| Aver-o-Mar to Opwijk | 903.21 mi (1,453.57 km) |
| Aver-o-Mar to Ostend | 876.26 mi (1,410.21 km) |
| Aver-o-Mar to Oud-Heverlee | 913.00 mi (1,469.33 km) |
| Aver-o-Mar to Oud-Turnhout | 945.20 mi (1,521.15 km) |
| Aver-o-Mar to Oudenaarde | 879.03 mi (1,414.67 km) |
| Aver-o-Mar to Oudenburg | 876.57 mi (1,410.71 km) |
| Aver-o-Mar to Oupeye | 940.77 mi (1,514.02 km) |
| Aver-o-Mar to Overijse | 906.33 mi (1,458.59 km) |
| Aver-o-Mar to Overpelt | 955.00 mi (1,536.92 km) |
| Aver-o-Mar to Paal | 939.02 mi (1,511.21 km) |
| Aver-o-Mar to Peer | 952.54 mi (1,532.97 km) |
| Aver-o-Mar to Pepinster | 940.94 mi (1,514.29 km) |
| Aver-o-Mar to Peruwelz | 862.90 mi (1,388.71 km) |
| Aver-o-Mar to Perwez | 908.73 mi (1,462.46 km) |
| Aver-o-Mar to Philippeville | 881.26 mi (1,418.25 km) |
