| Mastic to Montalegre | 3,292.19 mi (5,298.27 km) |
| Mastic to Montemor-o-Novo | 3,357.27 mi (5,403.01 km) |
| Mastic to Montemor-o-Velho | 3,292.59 mi (5,298.92 km) |
| Mastic to Montijo | 3,322.69 mi (5,347.35 km) |
| Mastic to Mortagua | 3,307.32 mi (5,322.61 km) |
| Mastic to Moura | 3,409.88 mi (5,487.67 km) |
| Mastic to Murtosa | 3,279.98 mi (5,278.62 km) |
| Mastic to Nazare | 3,289.17 mi (5,293.41 km) |
| Mastic to Nelas | 3,323.66 mi (5,348.91 km) |
| Mastic to Obidos | 3,291.30 mi (5,296.84 km) |
| Mastic to Odemira | 3,367.36 mi (5,419.23 km) |
| Mastic to Odivelas | 3,305.91 mi (5,320.35 km) |
| Mastic to Oeiras | 3,302.14 mi (5,314.28 km) |
| Mastic to Olhao | 3,423.18 mi (5,509.07 km) |
| Mastic to Oliveira de Azemeis | 3,284.84 mi (5,286.44 km) |
