| Celbridge to Opwijk | 482.60 mi (776.67 km) |
| Celbridge to Ostend | 425.20 mi (684.30 km) |
| Celbridge to Oud-Heverlee | 505.59 mi (813.67 km) |
| Celbridge to Oud-Turnhout | 505.54 mi (813.59 km) |
| Celbridge to Oudenaarde | 462.93 mi (745.01 km) |
| Celbridge to Oudenburg | 429.58 mi (691.35 km) |
| Celbridge to Oupeye | 548.05 mi (881.99 km) |
| Celbridge to Overijse | 501.73 mi (807.46 km) |
| Celbridge to Overpelt | 525.51 mi (845.73 km) |
| Celbridge to Paal | 520.19 mi (837.16 km) |
| Celbridge to Peer | 529.09 mi (851.49 km) |
| Celbridge to Pepinster | 559.02 mi (899.65 km) |
| Celbridge to Peruwelz | 472.73 mi (760.79 km) |
| Celbridge to Perwez | 517.58 mi (832.96 km) |
| Celbridge to Philippeville | 520.62 mi (837.85 km) |
