| Barcelos to Manerbio | 974.97 mi (1,569.06 km) |
| Barcelos to Manfredonia | 1,263.80 mi (2,033.89 km) |
| Barcelos to Maniago | 1,106.72 mi (1,781.10 km) |
| Barcelos to Mantova | 1,004.50 mi (1,616.58 km) |
| Barcelos to Maranello | 1,003.38 mi (1,614.79 km) |
| Barcelos to Marano di Napoli | 1,182.48 mi (1,903.01 km) |
| Barcelos to Marano Vicentino | 1,040.73 mi (1,674.90 km) |
| Barcelos to Marcianise | 1,186.98 mi (1,910.26 km) |
| Barcelos to Marcon | 1,080.71 mi (1,739.24 km) |
| Barcelos to Mareno di Piave | 1,085.97 mi (1,747.70 km) |
| Barcelos to Margherita di Savoia | 1,278.40 mi (2,057.39 km) |
| Barcelos to Mariano Comense | 933.91 mi (1,502.98 km) |
| Barcelos to Marigliano | 1,195.82 mi (1,924.49 km) |
| Barcelos to Marino | 1,096.28 mi (1,764.29 km) |
| Barcelos to Marostica | 1,051.80 mi (1,692.71 km) |
