| Castel Gandolfo to Mengen | 464.72 mi (747.90 km) |
| Castel Gandolfo to Meppen | 796.50 mi (1,281.84 km) |
| Castel Gandolfo to Merchweiler | 591.13 mi (951.33 km) |
| Castel Gandolfo to Mering | 457.46 mi (736.22 km) |
| Castel Gandolfo to Merseburg | 664.54 mi (1,069.48 km) |
| Castel Gandolfo to Merzenich | 691.56 mi (1,112.95 km) |
| Castel Gandolfo to Merzig | 606.49 mi (976.05 km) |
| Castel Gandolfo to Meschede | 694.90 mi (1,118.34 km) |
| Castel Gandolfo to Messkirch | 464.92 mi (748.22 km) |
| Castel Gandolfo to Messstetten | 479.58 mi (771.80 km) |
| Castel Gandolfo to Mettingen | 765.04 mi (1,231.21 km) |
| Castel Gandolfo to Mettlach | 609.41 mi (980.75 km) |
| Castel Gandolfo to Mettmann | 709.56 mi (1,141.93 km) |
| Castel Gandolfo to Metzingen | 496.85 mi (799.61 km) |
| Castel Gandolfo to Meuselwitz | 643.00 mi (1,034.81 km) |
