| Oosterhout to Montemor-o-Novo | 1,097.22 mi (1,765.81 km) |
| Oosterhout to Montemor-o-Velho | 1,022.53 mi (1,645.61 km) |
| Oosterhout to Montijo | 1,114.51 mi (1,793.63 km) |
| Oosterhout to Mortagua | 993.91 mi (1,599.55 km) |
| Oosterhout to Moura | 1,107.63 mi (1,782.55 km) |
| Oosterhout to Murtosa | 989.05 mi (1,591.71 km) |
| Oosterhout to Nazare | 1,066.33 mi (1,716.09 km) |
| Oosterhout to Nelas | 977.82 mi (1,573.66 km) |
| Oosterhout to Obidos | 1,082.90 mi (1,742.76 km) |
| Oosterhout to Odemira | 1,172.28 mi (1,886.61 km) |
| Oosterhout to Odivelas | 1,116.35 mi (1,796.59 km) |
| Oosterhout to Oeiras | 1,126.56 mi (1,813.02 km) |
| Oosterhout to Olhao | 1,185.21 mi (1,907.41 km) |
| Oosterhout to Oliveira de Azemeis | 978.22 mi (1,574.29 km) |
| Oosterhout to Oliveira de Frades | 976.32 mi (1,571.24 km) |
