| Gretz-Armainvilliers to Montilla | 854.71 mi (1,375.52 km) |
| Gretz-Armainvilliers to Montmelo | 497.09 mi (799.99 km) |
| Gretz-Armainvilliers to Montornes del Valles | 497.76 mi (801.07 km) |
| Gretz-Armainvilliers to Montoro | 821.80 mi (1,322.57 km) |
| Gretz-Armainvilliers to Monzon | 487.82 mi (785.07 km) |
| Gretz-Armainvilliers to Mora | 703.35 mi (1,131.93 km) |
| Gretz-Armainvilliers to Moralzarzal | 646.68 mi (1,040.72 km) |
| Gretz-Armainvilliers to Moron de la Frontera | 902.05 mi (1,451.71 km) |
| Gretz-Armainvilliers to Mostoles | 665.10 mi (1,070.37 km) |
| Gretz-Armainvilliers to Motril | 886.38 mi (1,426.48 km) |
| Gretz-Armainvilliers to Muchamiel | 730.92 mi (1,176.30 km) |
| Gretz-Armainvilliers to Mula | 768.75 mi (1,237.19 km) |
| Gretz-Armainvilliers to Munguia | 458.14 mi (737.31 km) |
| Gretz-Armainvilliers to Murcia | 767.77 mi (1,235.60 km) |
| Gretz-Armainvilliers to Muro del Alcoy | 706.04 mi (1,136.27 km) |
