| Gross-Zimmern to Montemor-o-Novo | 1,140.95 mi (1,836.19 km) |
| Gross-Zimmern to Montemor-o-Velho | 1,082.50 mi (1,742.12 km) |
| Gross-Zimmern to Montijo | 1,163.99 mi (1,873.26 km) |
| Gross-Zimmern to Mortagua | 1,052.65 mi (1,694.08 km) |
| Gross-Zimmern to Moura | 1,141.06 mi (1,836.37 km) |
| Gross-Zimmern to Murtosa | 1,053.71 mi (1,695.78 km) |
| Gross-Zimmern to Nazare | 1,124.46 mi (1,809.64 km) |
| Gross-Zimmern to Nelas | 1,034.17 mi (1,664.34 km) |
| Gross-Zimmern to Obidos | 1,139.75 mi (1,834.25 km) |
| Gross-Zimmern to Odemira | 1,211.54 mi (1,949.79 km) |
| Gross-Zimmern to Odivelas | 1,168.85 mi (1,881.08 km) |
| Gross-Zimmern to Oeiras | 1,179.29 mi (1,897.88 km) |
| Gross-Zimmern to Olhao | 1,214.21 mi (1,954.08 km) |
| Gross-Zimmern to Oliveira de Azemeis | 1,042.62 mi (1,677.94 km) |
| Gross-Zimmern to Oliveira de Frades | 1,037.24 mi (1,669.28 km) |
