| Opmeer to Montilla | 1,141.78 mi (1,837.51 km) |
| Opmeer to Montmelo | 780.31 mi (1,255.78 km) |
| Opmeer to Montornes del Valles | 780.88 mi (1,256.71 km) |
| Opmeer to Montoro | 1,108.94 mi (1,784.66 km) |
| Opmeer to Monzon | 777.72 mi (1,251.62 km) |
| Opmeer to Mora | 989.76 mi (1,592.86 km) |
| Opmeer to Moralzarzal | 930.57 mi (1,497.60 km) |
| Opmeer to Moron de la Frontera | 1,187.77 mi (1,911.52 km) |
| Opmeer to Mostoles | 950.09 mi (1,529.03 km) |
| Opmeer to Motril | 1,175.87 mi (1,892.37 km) |
| Opmeer to Muchamiel | 1,020.30 mi (1,642.01 km) |
| Opmeer to Mula | 1,058.87 mi (1,704.09 km) |
| Opmeer to Munguia | 738.42 mi (1,188.38 km) |
| Opmeer to Murcia | 1,057.70 mi (1,702.20 km) |
| Opmeer to Muro del Alcoy | 995.54 mi (1,602.17 km) |
