| Idar-Oberstein to Montilla | 1,026.32 mi (1,651.70 km) |
| Idar-Oberstein to Montmelo | 614.01 mi (988.16 km) |
| Idar-Oberstein to Montornes del Valles | 614.35 mi (988.70 km) |
| Idar-Oberstein to Montoro | 993.67 mi (1,599.15 km) |
| Idar-Oberstein to Monzon | 638.27 mi (1,027.20 km) |
| Idar-Oberstein to Mora | 879.34 mi (1,415.15 km) |
| Idar-Oberstein to Moralzarzal | 829.81 mi (1,335.46 km) |
| Idar-Oberstein to Moron de la Frontera | 1,077.08 mi (1,733.40 km) |
| Idar-Oberstein to Mostoles | 845.47 mi (1,360.65 km) |
| Idar-Oberstein to Motril | 1,046.03 mi (1,683.42 km) |
| Idar-Oberstein to Muchamiel | 869.36 mi (1,399.10 km) |
| Idar-Oberstein to Mula | 916.32 mi (1,474.68 km) |
| Idar-Oberstein to Munguia | 651.74 mi (1,048.88 km) |
| Idar-Oberstein to Murcia | 911.51 mi (1,466.93 km) |
| Idar-Oberstein to Muro del Alcoy | 846.03 mi (1,361.56 km) |
