| Piedmont to Opwijk | 5,497.75 mi (8,847.77 km) |
| Piedmont to Ostend | 5,448.40 mi (8,768.36 km) |
| Piedmont to Oud-Heverlee | 5,518.36 mi (8,880.95 km) |
| Piedmont to Oud-Turnhout | 5,501.52 mi (8,853.85 km) |
| Piedmont to Oudenaarde | 5,487.39 mi (8,831.10 km) |
| Piedmont to Oudenburg | 5,452.91 mi (8,775.61 km) |
| Piedmont to Oupeye | 5,552.20 mi (8,935.41 km) |
| Piedmont to Overijse | 5,517.27 mi (8,879.19 km) |
| Piedmont to Overpelt | 5,518.79 mi (8,881.64 km) |
| Piedmont to Paal | 5,521.52 mi (8,886.03 km) |
| Piedmont to Peer | 5,524.28 mi (8,890.48 km) |
| Piedmont to Pepinster | 5,564.59 mi (8,955.35 km) |
| Piedmont to Peruwelz | 5,504.39 mi (8,858.46 km) |
| Piedmont to Perwez | 5,533.62 mi (8,905.50 km) |
| Piedmont to Philippeville | 5,548.63 mi (8,929.66 km) |
