| Richterswil to Mangualde | 935.45 mi (1,505.46 km) |
| Richterswil to Marco de Canavezes | 930.32 mi (1,497.20 km) |
| Richterswil to Marinha Grande | 1,020.09 mi (1,641.67 km) |
| Richterswil to Massama | 1,076.31 mi (1,732.16 km) |
| Richterswil to Matosinhos | 954.57 mi (1,536.24 km) |
| Richterswil to Mealhada | 973.90 mi (1,567.34 km) |
| Richterswil to Melgaco | 902.76 mi (1,452.84 km) |
| Richterswil to Melres | 945.62 mi (1,521.83 km) |
| Richterswil to Mira | 984.24 mi (1,583.98 km) |
| Richterswil to Miranda do Corvo | 980.16 mi (1,577.41 km) |
| Richterswil to Mirandela | 876.69 mi (1,410.90 km) |
| Richterswil to Mogadouro | 862.11 mi (1,387.43 km) |
| Richterswil to Moimenta da Beira | 914.51 mi (1,471.76 km) |
| Richterswil to Moita | 1,068.74 mi (1,719.98 km) |
| Richterswil to Moncao | 913.79 mi (1,470.60 km) |
