| Totteridge to Mangualde | 842.75 mi (1,356.28 km) |
| Totteridge to Marco de Canavezes | 814.33 mi (1,310.54 km) |
| Totteridge to Marinha Grande | 921.52 mi (1,483.04 km) |
| Totteridge to Massama | 991.70 mi (1,595.99 km) |
| Totteridge to Matosinhos | 826.67 mi (1,330.40 km) |
| Totteridge to Mealhada | 871.14 mi (1,401.97 km) |
| Totteridge to Melgaco | 759.01 mi (1,221.51 km) |
| Totteridge to Melres | 827.14 mi (1,331.15 km) |
| Totteridge to Mira | 874.17 mi (1,406.84 km) |
| Totteridge to Miranda do Corvo | 886.60 mi (1,426.84 km) |
| Totteridge to Mirandela | 774.93 mi (1,247.13 km) |
| Totteridge to Mogadouro | 775.63 mi (1,248.26 km) |
| Totteridge to Moimenta da Beira | 815.85 mi (1,312.98 km) |
| Totteridge to Moita | 992.40 mi (1,597.11 km) |
| Totteridge to Moncao | 766.71 mi (1,233.90 km) |
