| Sulphur to Montalegre | 4,651.68 mi (7,486.16 km) |
| Sulphur to Montemor-o-Novo | 4,711.15 mi (7,581.86 km) |
| Sulphur to Montemor-o-Velho | 4,649.46 mi (7,482.58 km) |
| Sulphur to Montijo | 4,676.07 mi (7,525.40 km) |
| Sulphur to Mortagua | 4,664.89 mi (7,507.42 km) |
| Sulphur to Moura | 4,763.10 mi (7,665.47 km) |
| Sulphur to Murtosa | 4,637.84 mi (7,463.88 km) |
| Sulphur to Nazare | 4,644.64 mi (7,474.83 km) |
| Sulphur to Nelas | 4,681.55 mi (7,534.22 km) |
| Sulphur to Obidos | 4,646.16 mi (7,477.26 km) |
| Sulphur to Odemira | 4,717.86 mi (7,592.66 km) |
| Sulphur to Odivelas | 4,659.33 mi (7,498.47 km) |
| Sulphur to Oeiras | 4,655.16 mi (7,491.75 km) |
| Sulphur to Olhao | 4,772.81 mi (7,681.09 km) |
| Sulphur to Oliveira de Azemeis | 4,642.93 mi (7,472.08 km) |
