| Merchweiler to Montemor-o-Novo | 1,056.40 mi (1,700.11 km) |
| Merchweiler to Montemor-o-Velho | 996.53 mi (1,603.75 km) |
| Merchweiler to Montijo | 1,078.92 mi (1,736.36 km) |
| Merchweiler to Mortagua | 966.72 mi (1,555.78 km) |
| Merchweiler to Moura | 1,057.64 mi (1,702.11 km) |
| Merchweiler to Murtosa | 967.42 mi (1,556.91 km) |
| Merchweiler to Nazare | 1,038.65 mi (1,671.55 km) |
| Merchweiler to Nelas | 948.38 mi (1,526.27 km) |
| Merchweiler to Obidos | 1,054.05 mi (1,696.34 km) |
| Merchweiler to Odemira | 1,127.57 mi (1,814.65 km) |
| Merchweiler to Odivelas | 1,083.53 mi (1,743.77 km) |
| Merchweiler to Oeiras | 1,093.96 mi (1,760.57 km) |
| Merchweiler to Olhao | 1,131.47 mi (1,820.93 km) |
| Merchweiler to Oliveira de Azemeis | 956.34 mi (1,539.07 km) |
| Merchweiler to Oliveira de Frades | 951.15 mi (1,530.73 km) |
