| Zierikzee to Marco de Canavezes | 921.25 mi (1,482.61 km) |
| Zierikzee to Marinha Grande | 1,026.60 mi (1,652.16 km) |
| Zierikzee to Massama | 1,094.52 mi (1,761.46 km) |
| Zierikzee to Matosinhos | 937.56 mi (1,508.85 km) |
| Zierikzee to Mealhada | 975.98 mi (1,570.68 km) |
| Zierikzee to Melgaco | 872.24 mi (1,403.74 km) |
| Zierikzee to Melres | 935.24 mi (1,505.13 km) |
| Zierikzee to Mira | 981.28 mi (1,579.21 km) |
| Zierikzee to Miranda do Corvo | 989.16 mi (1,591.90 km) |
| Zierikzee to Mirandela | 876.07 mi (1,409.90 km) |
| Zierikzee to Mogadouro | 872.08 mi (1,403.48 km) |
| Zierikzee to Moimenta da Beira | 917.59 mi (1,476.72 km) |
| Zierikzee to Moita | 1,092.78 mi (1,758.66 km) |
| Zierikzee to Moncao | 881.22 mi (1,418.18 km) |
| Zierikzee to Montalegre | 874.34 mi (1,407.12 km) |
