| Barreiro to Massarosa | 1,066.60 mi (1,716.52 km) |
| Barreiro to Matelica | 1,190.76 mi (1,916.34 km) |
| Barreiro to Matera | 1,367.20 mi (2,200.29 km) |
| Barreiro to Matino | 1,450.69 mi (2,334.65 km) |
| Barreiro to Mazzarino | 1,267.18 mi (2,039.33 km) |
| Barreiro to Meda | 1,048.21 mi (1,686.93 km) |
| Barreiro to Medesano | 1,072.51 mi (1,726.03 km) |
| Barreiro to Medicina | 1,139.06 mi (1,833.14 km) |
| Barreiro to Meldola | 1,153.88 mi (1,856.99 km) |
| Barreiro to Melegnano | 1,047.94 mi (1,686.50 km) |
| Barreiro to Melendugno | 1,459.86 mi (2,349.41 km) |
| Barreiro to Melfi | 1,316.82 mi (2,119.21 km) |
| Barreiro to Melilli | 1,318.19 mi (2,121.43 km) |
| Barreiro to Melito di Napoli | 1,242.98 mi (2,000.38 km) |
| Barreiro to Melito di Porto Salvo | 1,344.46 mi (2,163.70 km) |
