| Red Oak to Mangualde | 4,757.20 mi (7,655.97 km) |
| Red Oak to Marco de Canavezes | 4,721.83 mi (7,599.04 km) |
| Red Oak to Marinha Grande | 4,726.29 mi (7,606.22 km) |
| Red Oak to Massama | 4,738.85 mi (7,626.45 km) |
| Red Oak to Matosinhos | 4,695.86 mi (7,557.25 km) |
| Red Oak to Mealhada | 4,730.93 mi (7,613.70 km) |
| Red Oak to Melgaco | 4,689.40 mi (7,546.86 km) |
| Red Oak to Melres | 4,713.41 mi (7,585.50 km) |
| Red Oak to Mira | 4,715.96 mi (7,589.61 km) |
| Red Oak to Miranda do Corvo | 4,744.81 mi (7,636.04 km) |
| Red Oak to Mirandela | 4,758.46 mi (7,658.00 km) |
| Red Oak to Mogadouro | 4,784.73 mi (7,700.28 km) |
| Red Oak to Moimenta da Beira | 4,753.09 mi (7,649.36 km) |
| Red Oak to Moita | 4,756.22 mi (7,654.39 km) |
| Red Oak to Moncao | 4,680.68 mi (7,532.83 km) |
