| Petal to Opwijk | 4,709.35 mi (7,578.97 km) |
| Petal to Ostend | 4,651.86 mi (7,486.45 km) |
| Petal to Oud-Heverlee | 4,732.34 mi (7,615.97 km) |
| Petal to Oud-Turnhout | 4,731.51 mi (7,614.62 km) |
| Petal to Oudenaarde | 4,689.15 mi (7,546.45 km) |
| Petal to Oudenburg | 4,656.20 mi (7,493.44 km) |
| Petal to Oupeye | 4,774.83 mi (7,684.34 km) |
| Petal to Overijse | 4,728.39 mi (7,609.61 km) |
| Petal to Overpelt | 4,751.43 mi (7,646.70 km) |
| Petal to Paal | 4,746.76 mi (7,639.17 km) |
| Petal to Peer | 4,755.26 mi (7,652.85 km) |
| Petal to Pepinster | 4,785.80 mi (7,702.01 km) |
| Petal to Peruwelz | 4,697.48 mi (7,559.86 km) |
| Petal to Perwez | 4,744.11 mi (7,634.90 km) |
| Petal to Philippeville | 4,745.28 mi (7,636.78 km) |
