| Petroupoli to Opwijk | 1,304.72 mi (2,099.75 km) |
| Petroupoli to Ostend | 1,359.96 mi (2,188.65 km) |
| Petroupoli to Oud-Heverlee | 1,282.26 mi (2,063.60 km) |
| Petroupoli to Oud-Turnhout | 1,291.46 mi (2,078.41 km) |
| Petroupoli to Oudenaarde | 1,320.92 mi (2,125.81 km) |
| Petroupoli to Oudenburg | 1,355.43 mi (2,181.35 km) |
| Petroupoli to Oupeye | 1,243.00 mi (2,000.42 km) |
| Petroupoli to Overijse | 1,284.93 mi (2,067.90 km) |
| Petroupoli to Overpelt | 1,272.48 mi (2,047.85 km) |
| Petroupoli to Paal | 1,273.22 mi (2,049.04 km) |
| Petroupoli to Peer | 1,267.62 mi (2,040.03 km) |
| Petroupoli to Pepinster | 1,230.99 mi (1,981.09 km) |
| Petroupoli to Peruwelz | 1,308.67 mi (2,106.11 km) |
| Petroupoli to Perwez | 1,268.50 mi (2,041.45 km) |
| Petroupoli to Philippeville | 1,261.11 mi (2,029.56 km) |
