| Barreiro to Montevarchi | 1,122.37 mi (1,806.29 km) |
| Barreiro to Monticello Conte Otto | 1,157.07 mi (1,862.12 km) |
| Barreiro to Montichiari | 1,098.24 mi (1,767.44 km) |
| Barreiro to Montignoso | 1,060.93 mi (1,707.40 km) |
| Barreiro to Montopoli in Val d'Arno | 1,083.94 mi (1,744.43 km) |
| Barreiro to Monza | 1,051.00 mi (1,691.43 km) |
| Barreiro to Morbegno | 1,077.91 mi (1,734.73 km) |
| Barreiro to Mori | 1,134.86 mi (1,826.39 km) |
| Barreiro to Morlupo | 1,156.77 mi (1,861.64 km) |
| Barreiro to Morrovalle | 1,219.91 mi (1,963.26 km) |
| Barreiro to Mortara | 1,019.17 mi (1,640.19 km) |
| Barreiro to Mosciano Sant'Angelo | 1,230.53 mi (1,980.34 km) |
| Barreiro to Motta di Livenza | 1,208.03 mi (1,944.14 km) |
| Barreiro to Motta Sant'Anastasia | 1,305.78 mi (2,101.46 km) |
| Barreiro to Mottola | 1,389.99 mi (2,236.98 km) |
