| Karvina to Marco de Canavezes | 1,414.31 mi (2,276.11 km) |
| Karvina to Marinha Grande | 1,505.26 mi (2,422.48 km) |
| Karvina to Massama | 1,561.61 mi (2,513.17 km) |
| Karvina to Matosinhos | 1,438.03 mi (2,314.28 km) |
| Karvina to Mealhada | 1,458.79 mi (2,347.70 km) |
| Karvina to Melgaco | 1,384.23 mi (2,227.70 km) |
| Karvina to Melres | 1,429.60 mi (2,300.71 km) |
| Karvina to Mira | 1,468.91 mi (2,363.99 km) |
| Karvina to Miranda do Corvo | 1,465.32 mi (2,358.20 km) |
| Karvina to Mirandela | 1,360.99 mi (2,190.30 km) |
| Karvina to Mogadouro | 1,346.95 mi (2,167.71 km) |
| Karvina to Moimenta da Beira | 1,399.23 mi (2,251.84 km) |
| Karvina to Moita | 1,553.95 mi (2,500.84 km) |
| Karvina to Moncao | 1,395.09 mi (2,245.19 km) |
| Karvina to Montalegre | 1,374.47 mi (2,212.00 km) |
