| Caledonia to Mangualde | 3,970.41 mi (6,389.76 km) |
| Caledonia to Marco de Canavezes | 3,932.50 mi (6,328.75 km) |
| Caledonia to Marinha Grande | 3,947.73 mi (6,353.26 km) |
| Caledonia to Massama | 3,967.64 mi (6,385.30 km) |
| Caledonia to Matosinhos | 3,907.83 mi (6,289.05 km) |
| Caledonia to Mealhada | 3,947.19 mi (6,352.38 km) |
| Caledonia to Melgaco | 3,894.85 mi (6,268.16 km) |
| Caledonia to Melres | 3,925.38 mi (6,317.28 km) |
| Caledonia to Mira | 3,932.61 mi (6,328.93 km) |
| Caledonia to Miranda do Corvo | 3,962.53 mi (6,377.07 km) |
| Caledonia to Mirandela | 3,965.12 mi (6,381.24 km) |
| Caledonia to Mogadouro | 3,991.19 mi (6,423.19 km) |
| Caledonia to Moimenta da Beira | 3,963.71 mi (6,378.97 km) |
| Caledonia to Moita | 3,984.90 mi (6,413.07 km) |
| Caledonia to Moncao | 3,886.86 mi (6,255.30 km) |
