| Castalla to Montevarchi | 722.00 mi (1,161.94 km) |
| Castalla to Monticello Conte Otto | 791.48 mi (1,273.76 km) |
| Castalla to Montichiari | 736.77 mi (1,185.71 km) |
| Castalla to Montignoso | 674.86 mi (1,086.08 km) |
| Castalla to Montopoli in Val d'Arno | 688.98 mi (1,108.81 km) |
| Castalla to Monza | 701.16 mi (1,128.40 km) |
| Castalla to Morbegno | 736.61 mi (1,185.46 km) |
| Castalla to Mori | 777.50 mi (1,251.27 km) |
| Castalla to Morlupo | 734.65 mi (1,182.30 km) |
| Castalla to Morrovalle | 810.74 mi (1,304.76 km) |
| Castalla to Mortara | 666.89 mi (1,073.25 km) |
| Castalla to Mosciano Sant'Angelo | 813.56 mi (1,309.29 km) |
| Castalla to Motta di Livenza | 839.91 mi (1,351.70 km) |
| Castalla to Motta Sant'Anastasia | 853.17 mi (1,373.04 km) |
| Castalla to Mottola | 951.10 mi (1,530.64 km) |
