| s-Gravendeel to Montemor-o-Novo | 1,098.09 mi (1,767.21 km) |
| s-Gravendeel to Montemor-o-Velho | 1,022.36 mi (1,645.34 km) |
| s-Gravendeel to Montijo | 1,114.96 mi (1,794.35 km) |
| s-Gravendeel to Mortagua | 993.87 mi (1,599.49 km) |
| s-Gravendeel to Moura | 1,109.19 mi (1,785.07 km) |
| s-Gravendeel to Murtosa | 988.59 mi (1,590.98 km) |
| s-Gravendeel to Nazare | 1,066.22 mi (1,715.92 km) |
| s-Gravendeel to Nelas | 977.98 mi (1,573.91 km) |
| s-Gravendeel to Obidos | 1,082.87 mi (1,742.71 km) |
| s-Gravendeel to Odemira | 1,173.37 mi (1,888.36 km) |
| s-Gravendeel to Odivelas | 1,116.58 mi (1,796.96 km) |
| s-Gravendeel to Oeiras | 1,126.76 mi (1,813.35 km) |
| s-Gravendeel to Olhao | 1,186.98 mi (1,910.25 km) |
| s-Gravendeel to Oliveira de Azemeis | 977.80 mi (1,573.62 km) |
| s-Gravendeel to Oliveira de Frades | 976.16 mi (1,570.97 km) |
