| Caldas da Rainha to Opwijk | 1,025.59 mi (1,650.53 km) |
| Caldas da Rainha to Ostend | 1,002.13 mi (1,612.78 km) |
| Caldas da Rainha to Oud-Heverlee | 1,033.89 mi (1,663.88 km) |
| Caldas da Rainha to Oud-Turnhout | 1,067.15 mi (1,717.42 km) |
| Caldas da Rainha to Oudenaarde | 1,002.27 mi (1,612.99 km) |
| Caldas da Rainha to Oudenburg | 1,002.15 mi (1,612.80 km) |
| Caldas da Rainha to Oupeye | 1,059.13 mi (1,704.51 km) |
| Caldas da Rainha to Overijse | 1,027.32 mi (1,653.30 km) |
| Caldas da Rainha to Overpelt | 1,075.73 mi (1,731.23 km) |
| Caldas da Rainha to Paal | 1,059.61 mi (1,705.28 km) |
| Caldas da Rainha to Peer | 1,072.90 mi (1,726.67 km) |
| Caldas da Rainha to Pepinster | 1,058.37 mi (1,703.28 km) |
| Caldas da Rainha to Peruwelz | 985.00 mi (1,585.20 km) |
| Caldas da Rainha to Perwez | 1,028.52 mi (1,655.24 km) |
| Caldas da Rainha to Philippeville | 999.94 mi (1,609.25 km) |
