| Castel Bolognese to Marsciano | 100.34 mi (161.48 km) |
| Castel Bolognese to Martano | 437.23 mi (703.65 km) |
| Castel Bolognese to Martellago | 86.76 mi (139.63 km) |
| Castel Bolognese to Martina Franca | 376.50 mi (605.92 km) |
| Castel Bolognese to Martinengo | 131.84 mi (212.18 km) |
| Castel Bolognese to Martinsicuro | 144.99 mi (233.34 km) |
| Castel Bolognese to Mascali | 486.97 mi (783.71 km) |
| Castel Bolognese to Mascalucia | 496.16 mi (798.48 km) |
| Castel Bolognese to Masera di Padova | 69.17 mi (111.32 km) |
| Castel Bolognese to Maserada sul Piave | 102.19 mi (164.47 km) |
| Castel Bolognese to Massa | 84.88 mi (136.60 km) |
| Castel Bolognese to Massa Lombarda | 9.25 mi (14.88 km) |
| Castel Bolognese to Massafra | 374.03 mi (601.94 km) |
| Castel Bolognese to Massalubrense | 286.75 mi (461.48 km) |
| Castel Bolognese to Massarosa | 79.15 mi (127.37 km) |
