| Grodzisk Mazowiecki to Marco de Canavezes | 1,545.58 mi (2,487.37 km) |
| Grodzisk Mazowiecki to Marinha Grande | 1,640.88 mi (2,640.75 km) |
| Grodzisk Mazowiecki to Massama | 1,700.34 mi (2,736.44 km) |
| Grodzisk Mazowiecki to Matosinhos | 1,567.84 mi (2,523.19 km) |
| Grodzisk Mazowiecki to Mealhada | 1,592.95 mi (2,563.61 km) |
| Grodzisk Mazowiecki to Melgaco | 1,510.53 mi (2,430.96 km) |
| Grodzisk Mazowiecki to Melres | 1,560.76 mi (2,511.79 km) |
| Grodzisk Mazowiecki to Mira | 1,602.10 mi (2,578.33 km) |
| Grodzisk Mazowiecki to Miranda do Corvo | 1,601.03 mi (2,576.60 km) |
| Grodzisk Mazowiecki to Mirandela | 1,493.40 mi (2,403.39 km) |
| Grodzisk Mazowiecki to Mogadouro | 1,481.37 mi (2,384.03 km) |
| Grodzisk Mazowiecki to Moimenta da Beira | 1,532.89 mi (2,466.96 km) |
| Grodzisk Mazowiecki to Moita | 1,693.83 mi (2,725.96 km) |
| Grodzisk Mazowiecki to Moncao | 1,521.05 mi (2,447.90 km) |
| Grodzisk Mazowiecki to Montalegre | 1,503.55 mi (2,419.73 km) |
