| Nikaia to Opwijk | 1,306.46 mi (2,102.55 km) |
| Nikaia to Ostend | 1,361.64 mi (2,191.34 km) |
| Nikaia to Oud-Heverlee | 1,284.02 mi (2,066.43 km) |
| Nikaia to Oud-Turnhout | 1,293.36 mi (2,081.46 km) |
| Nikaia to Oudenaarde | 1,322.57 mi (2,128.47 km) |
| Nikaia to Oudenburg | 1,357.10 mi (2,184.04 km) |
| Nikaia to Oupeye | 1,244.84 mi (2,003.37 km) |
| Nikaia to Overijse | 1,286.67 mi (2,070.69 km) |
| Nikaia to Overpelt | 1,274.40 mi (2,050.95 km) |
| Nikaia to Paal | 1,275.07 mi (2,052.03 km) |
| Nikaia to Peer | 1,269.52 mi (2,043.10 km) |
| Nikaia to Pepinster | 1,232.82 mi (1,984.03 km) |
| Nikaia to Peruwelz | 1,310.25 mi (2,108.65 km) |
| Nikaia to Perwez | 1,270.22 mi (2,044.23 km) |
| Nikaia to Philippeville | 1,262.71 mi (2,032.14 km) |
