| Castelo Branco to Montemor-o-Novo | 89.27 mi (143.67 km) |
| Castelo Branco to Montemor-o-Velho | 67.14 mi (108.06 km) |
| Castelo Branco to Montijo | 108.37 mi (174.40 km) |
| Castelo Branco to Mortagua | 57.58 mi (92.67 km) |
| Castelo Branco to Moura | 116.34 mi (187.24 km) |
| Castelo Branco to Murtosa | 87.06 mi (140.11 km) |
| Castelo Branco to Nazare | 84.61 mi (136.17 km) |
| Castelo Branco to Nelas | 51.78 mi (83.32 km) |
| Castelo Branco to Obidos | 93.79 mi (150.93 km) |
| Castelo Branco to Odemira | 165.97 mi (267.10 km) |
| Castelo Branco to Odivelas | 114.43 mi (184.15 km) |
| Castelo Branco to Oeiras | 124.82 mi (200.88 km) |
| Castelo Branco to Olhao | 193.70 mi (311.73 km) |
| Castelo Branco to Oliveira de Azemeis | 87.39 mi (140.63 km) |
| Castelo Branco to Oliveira de Frades | 71.86 mi (115.65 km) |
