| Sliedrecht to Marco de Canavezes | 954.80 mi (1,536.60 km) |
| Sliedrecht to Marinha Grande | 1,059.75 mi (1,705.50 km) |
| Sliedrecht to Massama | 1,127.28 mi (1,814.18 km) |
| Sliedrecht to Matosinhos | 971.54 mi (1,563.55 km) |
| Sliedrecht to Mealhada | 1,009.17 mi (1,624.10 km) |
| Sliedrecht to Melgaco | 906.61 mi (1,459.05 km) |
| Sliedrecht to Melres | 968.90 mi (1,559.30 km) |
| Sliedrecht to Mira | 1,014.74 mi (1,633.06 km) |
| Sliedrecht to Miranda do Corvo | 1,022.04 mi (1,644.82 km) |
| Sliedrecht to Mirandela | 909.00 mi (1,462.89 km) |
| Sliedrecht to Mogadouro | 904.42 mi (1,455.53 km) |
| Sliedrecht to Moimenta da Beira | 950.51 mi (1,529.69 km) |
| Sliedrecht to Moita | 1,125.22 mi (1,810.87 km) |
| Sliedrecht to Moncao | 915.71 mi (1,473.69 km) |
| Sliedrecht to Montalegre | 908.09 mi (1,461.44 km) |
