| Sremska Mitrovica to Mangualde | 1,413.22 mi (2,274.36 km) |
| Sremska Mitrovica to Marco de Canavezes | 1,418.09 mi (2,282.19 km) |
| Sremska Mitrovica to Marinha Grande | 1,492.92 mi (2,402.63 km) |
| Sremska Mitrovica to Massama | 1,537.97 mi (2,475.12 km) |
| Sremska Mitrovica to Matosinhos | 1,444.97 mi (2,325.45 km) |
| Sremska Mitrovica to Mealhada | 1,452.50 mi (2,337.57 km) |
| Sremska Mitrovica to Melgaco | 1,403.03 mi (2,257.96 km) |
| Sremska Mitrovica to Melres | 1,433.07 mi (2,306.31 km) |
| Sremska Mitrovica to Mira | 1,465.05 mi (2,357.77 km) |
| Sremska Mitrovica to Miranda do Corvo | 1,454.21 mi (2,340.33 km) |
| Sremska Mitrovica to Mirandela | 1,363.76 mi (2,194.76 km) |
| Sremska Mitrovica to Mogadouro | 1,344.53 mi (2,163.81 km) |
| Sremska Mitrovica to Moimenta da Beira | 1,396.73 mi (2,247.83 km) |
| Sremska Mitrovica to Moita | 1,527.00 mi (2,457.47 km) |
| Sremska Mitrovica to Moncao | 1,414.36 mi (2,276.20 km) |
