| Robertsville to Mangualde | 3,408.15 mi (5,484.89 km) |
| Robertsville to Marco de Canavezes | 3,374.08 mi (5,430.06 km) |
| Robertsville to Marinha Grande | 3,374.13 mi (5,430.14 km) |
| Robertsville to Massama | 3,384.57 mi (5,446.94 km) |
| Robertsville to Matosinhos | 3,347.58 mi (5,387.40 km) |
| Robertsville to Mealhada | 3,380.68 mi (5,440.67 km) |
| Robertsville to Melgaco | 3,344.56 mi (5,382.55 km) |
| Robertsville to Melres | 3,365.07 mi (5,415.56 km) |
| Robertsville to Mira | 3,365.59 mi (5,416.39 km) |
| Robertsville to Miranda do Corvo | 3,393.95 mi (5,462.03 km) |
| Robertsville to Mirandela | 3,412.67 mi (5,492.16 km) |
| Robertsville to Mogadouro | 3,438.95 mi (5,534.46 km) |
| Robertsville to Moimenta da Beira | 3,405.27 mi (5,480.25 km) |
| Robertsville to Moita | 3,401.93 mi (5,474.88 km) |
| Robertsville to Moncao | 3,335.47 mi (5,367.92 km) |
