| Kalkara to Marco de Canavezes | 1,274.92 mi (2,051.79 km) |
| Kalkara to Marinha Grande | 1,304.09 mi (2,098.73 km) |
| Kalkara to Massama | 1,319.02 mi (2,122.76 km) |
| Kalkara to Matosinhos | 1,303.17 mi (2,097.25 km) |
| Kalkara to Mealhada | 1,282.82 mi (2,064.51 km) |
| Kalkara to Melgaco | 1,292.69 mi (2,080.38 km) |
| Kalkara to Melres | 1,286.52 mi (2,070.45 km) |
| Kalkara to Mira | 1,298.03 mi (2,088.97 km) |
| Kalkara to Miranda do Corvo | 1,274.57 mi (2,051.23 km) |
| Kalkara to Mirandela | 1,229.20 mi (1,978.20 km) |
| Kalkara to Mogadouro | 1,203.51 mi (1,936.87 km) |
| Kalkara to Moimenta da Beira | 1,245.09 mi (2,003.77 km) |
| Kalkara to Moita | 1,303.16 mi (2,097.23 km) |
| Kalkara to Moncao | 1,302.79 mi (2,096.64 km) |
| Kalkara to Montalegre | 1,264.68 mi (2,035.30 km) |
