| Euclid to Mangualde | 3,716.06 mi (5,980.41 km) |
| Euclid to Marco de Canavezes | 3,679.86 mi (5,922.16 km) |
| Euclid to Marinha Grande | 3,687.96 mi (5,935.20 km) |
| Euclid to Massama | 3,703.43 mi (5,960.10 km) |
| Euclid to Matosinhos | 3,654.26 mi (5,880.96 km) |
| Euclid to Mealhada | 3,690.76 mi (5,939.71 km) |
| Euclid to Melgaco | 3,645.93 mi (5,867.56 km) |
| Euclid to Melres | 3,671.83 mi (5,909.23 km) |
| Euclid to Mira | 3,675.91 mi (5,915.81 km) |
| Euclid to Miranda do Corvo | 3,705.16 mi (5,962.88 km) |
| Euclid to Mirandela | 3,715.37 mi (5,979.32 km) |
| Euclid to Mogadouro | 3,741.61 mi (6,021.55 km) |
| Euclid to Moimenta da Beira | 3,711.14 mi (5,972.50 km) |
| Euclid to Moita | 3,720.78 mi (5,988.01 km) |
| Euclid to Moncao | 3,637.40 mi (5,853.84 km) |
