| Castelo Branco to Mechernich | 1,011.27 mi (1,627.48 km) |
| Castelo Branco to Meckenbeuren | 1,007.39 mi (1,621.24 km) |
| Castelo Branco to Meckenheim | 1,024.81 mi (1,649.28 km) |
| Castelo Branco to Meerane | 1,226.73 mi (1,974.23 km) |
| Castelo Branco to Meerbusch | 1,043.16 mi (1,678.81 km) |
| Castelo Branco to Meine | 1,218.36 mi (1,960.76 km) |
| Castelo Branco to Meinerzhagen | 1,067.04 mi (1,717.23 km) |
| Castelo Branco to Meiningen | 1,139.81 mi (1,834.34 km) |
| Castelo Branco to Meissen | 1,275.98 mi (2,053.50 km) |
| Castelo Branco to Meitingen | 1,085.61 mi (1,747.12 km) |
| Castelo Branco to Melle | 1,139.67 mi (1,834.12 km) |
| Castelo Branco to Melsungen | 1,132.29 mi (1,822.24 km) |
| Castelo Branco to Memmelsdorf | 1,137.08 mi (1,829.95 km) |
| Castelo Branco to Memmingen | 1,041.92 mi (1,676.81 km) |
| Castelo Branco to Mendig | 1,022.00 mi (1,644.76 km) |
