| Portet-sur-Garonne to Marsciano | 551.38 mi (887.36 km) |
| Portet-sur-Garonne to Martano | 897.36 mi (1,444.16 km) |
| Portet-sur-Garonne to Martellago | 547.22 mi (880.67 km) |
| Portet-sur-Garonne to Martina Franca | 837.90 mi (1,348.48 km) |
| Portet-sur-Garonne to Martinengo | 435.12 mi (700.26 km) |
| Portet-sur-Garonne to Martinsicuro | 631.04 mi (1,015.56 km) |
| Portet-sur-Garonne to Mascali | 824.40 mi (1,326.74 km) |
| Portet-sur-Garonne to Mascalucia | 824.61 mi (1,327.07 km) |
| Portet-sur-Garonne to Masera di Padova | 530.48 mi (853.73 km) |
| Portet-sur-Garonne to Maserada sul Piave | 557.57 mi (897.32 km) |
| Portet-sur-Garonne to Massa | 436.60 mi (702.64 km) |
| Portet-sur-Garonne to Massa Lombarda | 521.14 mi (838.69 km) |
| Portet-sur-Garonne to Massafra | 829.80 mi (1,335.43 km) |
| Portet-sur-Garonne to Massalubrense | 692.74 mi (1,114.85 km) |
| Portet-sur-Garonne to Massarosa | 446.39 mi (718.40 km) |
