| Greenock to Montijo | 1,180.42 mi (1,899.71 km) |
| Greenock to Montilla | 1,269.03 mi (2,042.31 km) |
| Greenock to Montmelo | 1,043.39 mi (1,679.18 km) |
| Greenock to Montornes del Valles | 1,044.31 mi (1,680.66 km) |
| Greenock to Montoro | 1,239.20 mi (1,994.29 km) |
| Greenock to Monzon | 995.16 mi (1,601.56 km) |
| Greenock to Mora | 1,124.78 mi (1,810.15 km) |
| Greenock to Moralzarzal | 1,056.02 mi (1,699.49 km) |
| Greenock to Moron de la Frontera | 1,301.27 mi (2,094.19 km) |
| Greenock to Mostoles | 1,079.78 mi (1,737.74 km) |
| Greenock to Motril | 1,327.87 mi (2,137.00 km) |
| Greenock to Muchamiel | 1,227.91 mi (1,976.14 km) |
| Greenock to Mula | 1,246.56 mi (2,006.15 km) |
| Greenock to Munguia | 874.38 mi (1,407.18 km) |
| Greenock to Murcia | 1,252.53 mi (2,015.75 km) |
