| Boville Ernica to Opwijk | 780.14 mi (1,255.51 km) |
| Boville Ernica to Ostend | 828.88 mi (1,333.96 km) |
| Boville Ernica to Oud-Heverlee | 760.02 mi (1,223.13 km) |
| Boville Ernica to Oud-Turnhout | 779.20 mi (1,254.01 km) |
| Boville Ernica to Oudenaarde | 789.92 mi (1,271.25 km) |
| Boville Ernica to Oudenburg | 824.38 mi (1,326.71 km) |
| Boville Ernica to Oupeye | 728.32 mi (1,172.11 km) |
| Boville Ernica to Overijse | 760.78 mi (1,224.36 km) |
| Boville Ernica to Overpelt | 763.06 mi (1,228.02 km) |
| Boville Ernica to Paal | 758.74 mi (1,221.08 km) |
| Boville Ernica to Peer | 757.33 mi (1,218.80 km) |
| Boville Ernica to Pepinster | 715.96 mi (1,152.22 km) |
| Boville Ernica to Peruwelz | 772.96 mi (1,243.96 km) |
| Boville Ernica to Perwez | 744.57 mi (1,198.26 km) |
| Boville Ernica to Philippeville | 728.71 mi (1,172.74 km) |
