| Grigny to Marco de Canavezes | 728.27 mi (1,172.03 km) |
| Grigny to Marinha Grande | 830.67 mi (1,336.83 km) |
| Grigny to Massama | 896.25 mi (1,442.37 km) |
| Grigny to Matosinhos | 747.39 mi (1,202.81 km) |
| Grigny to Mealhada | 780.57 mi (1,256.21 km) |
| Grigny to Melgaco | 685.38 mi (1,103.01 km) |
| Grigny to Melres | 742.92 mi (1,195.61 km) |
| Grigny to Mira | 787.44 mi (1,267.27 km) |
| Grigny to Miranda do Corvo | 791.98 mi (1,274.57 km) |
| Grigny to Mirandela | 679.70 mi (1,093.88 km) |
| Grigny to Mogadouro | 672.67 mi (1,082.55 km) |
| Grigny to Moimenta da Beira | 720.92 mi (1,160.21 km) |
| Grigny to Moita | 892.96 mi (1,437.09 km) |
| Grigny to Moncao | 695.26 mi (1,118.91 km) |
| Grigny to Montalegre | 683.03 mi (1,099.23 km) |
