| Cloppenburg to Montemor-o-Novo | 1,249.96 mi (2,011.62 km) |
| Cloppenburg to Montemor-o-Velho | 1,177.93 mi (1,895.70 km) |
| Cloppenburg to Montijo | 1,268.39 mi (2,041.27 km) |
| Cloppenburg to Mortagua | 1,149.05 mi (1,849.21 km) |
| Cloppenburg to Moura | 1,258.19 mi (2,024.86 km) |
| Cloppenburg to Murtosa | 1,145.05 mi (1,842.78 km) |
| Cloppenburg to Nazare | 1,221.55 mi (1,965.89 km) |
| Cloppenburg to Nelas | 1,132.53 mi (1,822.62 km) |
| Cloppenburg to Obidos | 1,237.96 mi (1,992.31 km) |
| Cloppenburg to Odemira | 1,324.31 mi (2,131.27 km) |
| Cloppenburg to Odivelas | 1,270.76 mi (2,045.10 km) |
| Cloppenburg to Oeiras | 1,281.04 mi (2,061.64 km) |
| Cloppenburg to Olhao | 1,334.96 mi (2,148.42 km) |
| Cloppenburg to Oliveira de Azemeis | 1,134.16 mi (1,825.26 km) |
| Cloppenburg to Oliveira de Frades | 1,131.75 mi (1,821.38 km) |
