| Greenock to Masanasa | 1,160.25 mi (1,867.24 km) |
| Greenock to Masquefa | 1,041.06 mi (1,675.43 km) |
| Greenock to Matadepera | 1,037.11 mi (1,669.07 km) |
| Greenock to Mazarron | 1,278.06 mi (2,056.83 km) |
| Greenock to Meco | 1,065.77 mi (1,715.18 km) |
| Greenock to Medina del Campo | 1,012.24 mi (1,629.04 km) |
| Greenock to Medina Sidonia | 1,347.24 mi (2,168.18 km) |
| Greenock to Mejorada del Campo | 1,076.45 mi (1,732.38 km) |
| Greenock to Meliana | 1,152.52 mi (1,854.80 km) |
| Greenock to Mengibar | 1,243.20 mi (2,000.74 km) |
| Greenock to Merida | 1,180.24 mi (1,899.42 km) |
| Greenock to Miajadas | 1,162.30 mi (1,870.54 km) |
| Greenock to Mieres | 878.57 mi (1,413.93 km) |
| Greenock to Miguelturra | 1,174.03 mi (1,889.42 km) |
| Greenock to Mijas | 1,336.97 mi (2,151.64 km) |
