| Geilenkirchen to Montemor-o-Novo | 1,099.58 mi (1,769.60 km) |
| Geilenkirchen to Montemor-o-Velho | 1,030.37 mi (1,658.21 km) |
| Geilenkirchen to Montijo | 1,118.97 mi (1,800.81 km) |
| Geilenkirchen to Mortagua | 1,001.17 mi (1,611.23 km) |
| Geilenkirchen to Moura | 1,106.41 mi (1,780.60 km) |
| Geilenkirchen to Murtosa | 998.42 mi (1,606.81 km) |
| Geilenkirchen to Nazare | 1,073.68 mi (1,727.93 km) |
| Geilenkirchen to Nelas | 984.14 mi (1,583.83 km) |
| Geilenkirchen to Obidos | 1,089.87 mi (1,753.97 km) |
| Geilenkirchen to Odemira | 1,173.35 mi (1,888.33 km) |
| Geilenkirchen to Odivelas | 1,121.89 mi (1,805.51 km) |
| Geilenkirchen to Oeiras | 1,132.22 mi (1,822.14 km) |
| Geilenkirchen to Olhao | 1,182.75 mi (1,903.45 km) |
| Geilenkirchen to Oliveira de Azemeis | 987.45 mi (1,589.15 km) |
| Geilenkirchen to Oliveira de Frades | 984.28 mi (1,584.05 km) |
