| Oberwil to Mangualde | 895.46 mi (1,441.11 km) |
| Oberwil to Marco de Canavezes | 888.35 mi (1,429.67 km) |
| Oberwil to Marinha Grande | 980.55 mi (1,578.05 km) |
| Oberwil to Massama | 1,038.54 mi (1,671.37 km) |
| Oberwil to Matosinhos | 911.94 mi (1,467.63 km) |
| Oberwil to Mealhada | 933.52 mi (1,502.36 km) |
| Oberwil to Melgaco | 858.32 mi (1,381.34 km) |
| Oberwil to Melres | 903.64 mi (1,454.26 km) |
| Oberwil to Mira | 943.37 mi (1,518.20 km) |
| Oberwil to Miranda do Corvo | 940.62 mi (1,513.78 km) |
| Oberwil to Mirandela | 835.20 mi (1,344.12 km) |
| Oberwil to Mogadouro | 821.67 mi (1,322.35 km) |
| Oberwil to Moimenta da Beira | 873.76 mi (1,406.18 km) |
| Oberwil to Moita | 1,031.63 mi (1,660.24 km) |
| Oberwil to Moncao | 869.24 mi (1,398.90 km) |
