| Helensburgh to Masanasa | 1,164.51 mi (1,874.09 km) |
| Helensburgh to Masquefa | 1,045.00 mi (1,681.77 km) |
| Helensburgh to Matadepera | 1,041.02 mi (1,675.36 km) |
| Helensburgh to Mazarron | 1,282.42 mi (2,063.86 km) |
| Helensburgh to Meco | 1,070.27 mi (1,722.43 km) |
| Helensburgh to Medina del Campo | 1,016.85 mi (1,636.47 km) |
| Helensburgh to Medina Sidonia | 1,351.90 mi (2,175.67 km) |
| Helensburgh to Mejorada del Campo | 1,080.96 mi (1,739.64 km) |
| Helensburgh to Meliana | 1,156.77 mi (1,861.64 km) |
| Helensburgh to Mengibar | 1,247.75 mi (2,008.06 km) |
| Helensburgh to Merida | 1,184.92 mi (1,906.95 km) |
| Helensburgh to Miajadas | 1,166.97 mi (1,878.06 km) |
| Helensburgh to Mieres | 883.24 mi (1,421.44 km) |
| Helensburgh to Miguelturra | 1,178.58 mi (1,896.74 km) |
| Helensburgh to Mijas | 1,341.57 mi (2,159.04 km) |
