| Herrin to Opwijk | 4,378.66 mi (7,046.78 km) |
| Herrin to Ostend | 4,321.77 mi (6,955.21 km) |
| Herrin to Oud-Heverlee | 4,401.58 mi (7,083.66 km) |
| Herrin to Oud-Turnhout | 4,397.78 mi (7,077.54 km) |
| Herrin to Oudenaarde | 4,359.97 mi (7,016.70 km) |
| Herrin to Oudenburg | 4,326.21 mi (6,962.36 km) |
| Herrin to Oupeye | 4,443.14 mi (7,150.54 km) |
| Herrin to Overijse | 4,398.10 mi (7,078.06 km) |
| Herrin to Overpelt | 4,417.54 mi (7,109.34 km) |
| Herrin to Paal | 4,414.15 mi (7,103.88 km) |
| Herrin to Peer | 4,421.73 mi (7,116.09 km) |
| Herrin to Pepinster | 4,454.55 mi (7,168.91 km) |
| Herrin to Peruwelz | 4,370.07 mi (7,032.95 km) |
| Herrin to Perwez | 4,414.18 mi (7,103.93 km) |
| Herrin to Philippeville | 4,417.96 mi (7,110.03 km) |
