| Dartford to Mangualde | 839.74 mi (1,351.44 km) |
| Dartford to Marco de Canavezes | 812.28 mi (1,307.24 km) |
| Dartford to Marinha Grande | 919.34 mi (1,479.54 km) |
| Dartford to Massama | 989.25 mi (1,592.04 km) |
| Dartford to Matosinhos | 825.33 mi (1,328.24 km) |
| Dartford to Mealhada | 868.84 mi (1,398.27 km) |
| Dartford to Melgaco | 757.95 mi (1,219.81 km) |
| Dartford to Melres | 825.32 mi (1,328.22 km) |
| Dartford to Mira | 872.26 mi (1,403.77 km) |
| Dartford to Miranda do Corvo | 883.94 mi (1,422.57 km) |
| Dartford to Mirandela | 771.83 mi (1,242.14 km) |
| Dartford to Mogadouro | 771.77 mi (1,242.05 km) |
| Dartford to Moimenta da Beira | 812.93 mi (1,308.29 km) |
| Dartford to Moita | 989.55 mi (1,592.52 km) |
| Dartford to Moncao | 765.90 mi (1,232.59 km) |
