| Grafton to Mangualde | 3,957.07 mi (6,368.29 km) |
| Grafton to Marco de Canavezes | 3,918.92 mi (6,306.89 km) |
| Grafton to Marinha Grande | 3,935.23 mi (6,333.14 km) |
| Grafton to Massama | 3,955.84 mi (6,366.30 km) |
| Grafton to Matosinhos | 3,894.40 mi (6,267.43 km) |
| Grafton to Mealhada | 3,934.17 mi (6,331.43 km) |
| Grafton to Melgaco | 3,880.74 mi (6,245.44 km) |
| Grafton to Melres | 3,911.93 mi (6,295.64 km) |
| Grafton to Mira | 3,919.64 mi (6,308.05 km) |
| Grafton to Miranda do Corvo | 3,949.64 mi (6,356.34 km) |
| Grafton to Mirandela | 3,951.09 mi (6,358.67 km) |
| Grafton to Mogadouro | 3,977.13 mi (6,400.57 km) |
| Grafton to Moimenta da Beira | 3,950.10 mi (6,357.08 km) |
| Grafton to Moita | 3,973.07 mi (6,394.04 km) |
| Grafton to Moncao | 3,872.83 mi (6,232.72 km) |
