| Barcelos to Massarosa | 973.73 mi (1,567.07 km) |
| Barcelos to Matelica | 1,107.06 mi (1,781.64 km) |
| Barcelos to Matera | 1,309.76 mi (2,107.85 km) |
| Barcelos to Matino | 1,397.79 mi (2,249.53 km) |
| Barcelos to Mazzarino | 1,248.42 mi (2,009.14 km) |
| Barcelos to Meda | 932.66 mi (1,500.98 km) |
| Barcelos to Medesano | 969.07 mi (1,559.57 km) |
| Barcelos to Medicina | 1,040.74 mi (1,674.92 km) |
| Barcelos to Meldola | 1,059.86 mi (1,705.68 km) |
| Barcelos to Melegnano | 936.14 mi (1,506.56 km) |
| Barcelos to Melendugno | 1,404.57 mi (2,260.43 km) |
| Barcelos to Melfi | 1,256.78 mi (2,022.59 km) |
| Barcelos to Melilli | 1,298.45 mi (2,089.65 km) |
| Barcelos to Melito di Napoli | 1,184.86 mi (1,906.85 km) |
| Barcelos to Melito di Porto Salvo | 1,315.82 mi (2,117.61 km) |
