| Helensburgh to Montevarchi | 1,122.83 mi (1,807.02 km) |
| Helensburgh to Monticello Conte Otto | 1,007.84 mi (1,621.96 km) |
| Helensburgh to Montichiari | 982.79 mi (1,581.65 km) |
| Helensburgh to Montignoso | 1,056.00 mi (1,699.47 km) |
| Helensburgh to Montopoli in Val d'Arno | 1,092.14 mi (1,757.63 km) |
| Helensburgh to Monza | 941.77 mi (1,515.64 km) |
| Helensburgh to Morbegno | 919.30 mi (1,479.48 km) |
| Helensburgh to Mori | 976.31 mi (1,571.22 km) |
| Helensburgh to Morlupo | 1,228.78 mi (1,977.52 km) |
| Helensburgh to Morrovalle | 1,193.06 mi (1,920.04 km) |
| Helensburgh to Mortara | 946.56 mi (1,523.34 km) |
| Helensburgh to Mosciano Sant'Angelo | 1,233.65 mi (1,985.37 km) |
| Helensburgh to Motta di Livenza | 1,029.72 mi (1,657.17 km) |
| Helensburgh to Motta Sant'Anastasia | 1,571.09 mi (2,528.43 km) |
| Helensburgh to Mottola | 1,447.10 mi (2,328.88 km) |
