| Tuscaloosa to Mangualde | 4,283.52 mi (6,893.66 km) |
| Tuscaloosa to Marco de Canavezes | 4,250.24 mi (6,840.09 km) |
| Tuscaloosa to Marinha Grande | 4,247.07 mi (6,835.00 km) |
| Tuscaloosa to Massama | 4,254.88 mi (6,847.57 km) |
| Tuscaloosa to Matosinhos | 4,223.46 mi (6,797.00 km) |
| Tuscaloosa to Mealhada | 4,255.24 mi (6,848.14 km) |
| Tuscaloosa to Melgaco | 4,222.06 mi (6,794.75 km) |
| Tuscaloosa to Melres | 4,240.91 mi (6,825.08 km) |
| Tuscaloosa to Mira | 4,240.08 mi (6,823.75 km) |
| Tuscaloosa to Miranda do Corvo | 4,268.02 mi (6,868.71 km) |
| Tuscaloosa to Mirandela | 4,289.73 mi (6,903.65 km) |
| Tuscaloosa to Mogadouro | 4,315.99 mi (6,945.92 km) |
| Tuscaloosa to Moimenta da Beira | 4,281.35 mi (6,890.17 km) |
| Tuscaloosa to Moita | 4,272.21 mi (6,875.45 km) |
| Tuscaloosa to Moncao | 4,212.82 mi (6,779.88 km) |
