| Gretna to Mengen | 5,109.78 mi (8,223.39 km) |
| Gretna to Meppen | 4,889.30 mi (7,868.56 km) |
| Gretna to Merchweiler | 4,976.93 mi (8,009.59 km) |
| Gretna to Mering | 5,170.49 mi (8,321.10 km) |
| Gretna to Merseburg | 5,109.38 mi (8,222.75 km) |
| Gretna to Merzenich | 4,912.87 mi (7,906.50 km) |
| Gretna to Merzig | 4,956.25 mi (7,976.31 km) |
| Gretna to Meschede | 4,966.67 mi (7,993.08 km) |
| Gretna to Messkirch | 5,102.62 mi (8,211.87 km) |
| Gretna to Messstetten | 5,090.57 mi (8,192.47 km) |
| Gretna to Mettingen | 4,918.80 mi (7,916.05 km) |
| Gretna to Mettlach | 4,954.24 mi (7,973.08 km) |
| Gretna to Mettmann | 4,918.09 mi (7,914.90 km) |
| Gretna to Metzingen | 5,092.66 mi (8,195.84 km) |
| Gretna to Meuselwitz | 5,131.05 mi (8,257.62 km) |
