| Geraardsbergen to Marco de Canavezes | 876.06 mi (1,409.89 km) |
| Geraardsbergen to Marinha Grande | 980.45 mi (1,577.88 km) |
| Geraardsbergen to Massama | 1,047.52 mi (1,685.82 km) |
| Geraardsbergen to Matosinhos | 893.44 mi (1,437.85 km) |
| Geraardsbergen to Mealhada | 929.96 mi (1,496.62 km) |
| Geraardsbergen to Melgaco | 829.17 mi (1,334.42 km) |
| Geraardsbergen to Melres | 890.32 mi (1,432.84 km) |
| Geraardsbergen to Mira | 935.86 mi (1,506.13 km) |
| Geraardsbergen to Miranda do Corvo | 942.47 mi (1,516.76 km) |
| Geraardsbergen to Mirandela | 829.52 mi (1,334.99 km) |
| Geraardsbergen to Mogadouro | 824.34 mi (1,326.65 km) |
| Geraardsbergen to Moimenta da Beira | 871.00 mi (1,401.73 km) |
| Geraardsbergen to Moita | 1,045.15 mi (1,682.01 km) |
| Geraardsbergen to Moncao | 838.49 mi (1,349.41 km) |
| Geraardsbergen to Montalegre | 829.68 mi (1,335.24 km) |
