| Barreiro to Marsala | 1,165.79 mi (1,876.17 km) |
| Barreiro to Marsciano | 1,153.79 mi (1,856.85 km) |
| Barreiro to Martano | 1,458.48 mi (2,347.19 km) |
| Barreiro to Martellago | 1,182.62 mi (1,903.24 km) |
| Barreiro to Martina Franca | 1,405.46 mi (2,261.87 km) |
| Barreiro to Martinengo | 1,073.11 mi (1,727.01 km) |
| Barreiro to Martinsicuro | 1,233.12 mi (1,984.52 km) |
| Barreiro to Mascali | 1,315.15 mi (2,116.53 km) |
| Barreiro to Mascalucia | 1,309.40 mi (2,107.27 km) |
| Barreiro to Masera di Padova | 1,164.68 mi (1,874.38 km) |
| Barreiro to Maserada sul Piave | 1,193.96 mi (1,921.49 km) |
| Barreiro to Massa | 1,059.59 mi (1,705.25 km) |
| Barreiro to Massa Lombarda | 1,147.34 mi (1,846.46 km) |
| Barreiro to Massafra | 1,394.54 mi (2,244.30 km) |
| Barreiro to Massalubrense | 1,249.43 mi (2,010.76 km) |
