| Tadworth to Mangualde | 821.16 mi (1,321.53 km) |
| Tadworth to Marco de Canavezes | 793.18 mi (1,276.50 km) |
| Tadworth to Marinha Grande | 900.31 mi (1,448.92 km) |
| Tadworth to Massama | 970.37 mi (1,561.67 km) |
| Tadworth to Matosinhos | 805.87 mi (1,296.92 km) |
| Tadworth to Mealhada | 849.88 mi (1,367.74 km) |
| Tadworth to Melgaco | 738.35 mi (1,188.25 km) |
| Tadworth to Melres | 806.10 mi (1,297.29 km) |
| Tadworth to Mira | 853.09 mi (1,372.92 km) |
| Tadworth to Miranda do Corvo | 865.17 mi (1,392.35 km) |
| Tadworth to Mirandela | 753.30 mi (1,212.31 km) |
| Tadworth to Mogadouro | 753.68 mi (1,212.93 km) |
| Tadworth to Moimenta da Beira | 794.30 mi (1,278.30 km) |
| Tadworth to Moita | 970.89 mi (1,562.49 km) |
| Tadworth to Moncao | 746.17 mi (1,200.85 km) |
