| Pirot to Opwijk | 1,016.42 mi (1,635.77 km) |
| Pirot to Ostend | 1,073.77 mi (1,728.07 km) |
| Pirot to Oud-Heverlee | 993.44 mi (1,598.78 km) |
| Pirot to Oud-Turnhout | 996.02 mi (1,602.94 km) |
| Pirot to Oudenaarde | 1,036.29 mi (1,667.75 km) |
| Pirot to Oudenburg | 1,069.40 mi (1,721.04 km) |
| Pirot to Oupeye | 951.31 mi (1,530.98 km) |
| Pirot to Overijse | 997.24 mi (1,604.91 km) |
| Pirot to Overpelt | 976.22 mi (1,571.08 km) |
| Pirot to Paal | 979.93 mi (1,577.04 km) |
| Pirot to Peer | 972.09 mi (1,564.43 km) |
| Pirot to Pepinster | 940.12 mi (1,512.98 km) |
| Pirot to Peruwelz | 1,028.00 mi (1,654.41 km) |
| Pirot to Perwez | 981.43 mi (1,579.46 km) |
| Pirot to Philippeville | 980.25 mi (1,577.57 km) |
