| Guadarrama to Montevarchi | 825.27 mi (1,328.15 km) |
| Guadarrama to Monticello Conte Otto | 858.52 mi (1,381.66 km) |
| Guadarrama to Montichiari | 799.77 mi (1,287.10 km) |
| Guadarrama to Montignoso | 762.62 mi (1,227.32 km) |
| Guadarrama to Montopoli in Val d'Arno | 786.32 mi (1,265.47 km) |
| Guadarrama to Monza | 753.12 mi (1,212.02 km) |
| Guadarrama to Morbegno | 780.95 mi (1,256.82 km) |
| Guadarrama to Mori | 836.72 mi (1,346.57 km) |
| Guadarrama to Morlupo | 864.49 mi (1,391.27 km) |
| Guadarrama to Morrovalle | 923.82 mi (1,486.75 km) |
| Guadarrama to Mortara | 720.99 mi (1,160.31 km) |
| Guadarrama to Mosciano Sant'Angelo | 936.18 mi (1,506.64 km) |
| Guadarrama to Motta di Livenza | 909.46 mi (1,463.63 km) |
| Guadarrama to Motta Sant'Anastasia | 1,042.98 mi (1,678.51 km) |
| Guadarrama to Mottola | 1,104.53 mi (1,777.56 km) |
