| Holmen to Opwijk | 4,162.62 mi (6,699.08 km) |
| Holmen to Ostend | 4,107.13 mi (6,609.79 km) |
| Holmen to Oud-Heverlee | 4,185.19 mi (6,735.42 km) |
| Holmen to Oud-Turnhout | 4,177.48 mi (6,723.00 km) |
| Holmen to Oudenaarde | 4,146.15 mi (6,672.58 km) |
| Holmen to Oudenburg | 4,111.66 mi (6,617.08 km) |
| Holmen to Oupeye | 4,225.08 mi (6,799.62 km) |
| Holmen to Overijse | 4,182.37 mi (6,730.88 km) |
| Holmen to Overpelt | 4,196.80 mi (6,754.10 km) |
| Holmen to Paal | 4,195.16 mi (6,751.45 km) |
| Holmen to Peer | 4,201.44 mi (6,761.56 km) |
| Holmen to Pepinster | 4,236.95 mi (6,818.72 km) |
| Holmen to Peruwelz | 4,158.48 mi (6,692.43 km) |
| Holmen to Perwez | 4,198.77 mi (6,757.27 km) |
| Holmen to Philippeville | 4,205.98 mi (6,768.87 km) |
