| Castel Bolognese to Mombris | 416.01 mi (669.50 km) |
| Castel Bolognese to Monchengladbach | 536.61 mi (863.59 km) |
| Castel Bolognese to Monschau | 502.86 mi (809.27 km) |
| Castel Bolognese to Montabaur | 461.81 mi (743.21 km) |
| Castel Bolognese to Moosburg | 286.81 mi (461.57 km) |
| Castel Bolognese to Morbach | 439.10 mi (706.66 km) |
| Castel Bolognese to Morfelden-Walldorf | 420.65 mi (676.97 km) |
| Castel Bolognese to Morlenbach | 392.43 mi (631.56 km) |
| Castel Bolognese to Morsbach | 490.74 mi (789.77 km) |
| Castel Bolognese to Mosbach | 369.77 mi (595.09 km) |
| Castel Bolognese to Mosigkau | 519.73 mi (836.42 km) |
| Castel Bolognese to Mossingen | 311.31 mi (501.00 km) |
| Castel Bolognese to Much | 499.72 mi (804.22 km) |
| Castel Bolognese to Mucheln | 482.50 mi (776.51 km) |
| Castel Bolognese to Muhlacker | 349.52 mi (562.50 km) |
