| Potomac to Mengen | 4,147.09 mi (6,674.10 km) |
| Potomac to Meppen | 3,932.09 mi (6,328.09 km) |
| Potomac to Merchweiler | 4,014.74 mi (6,461.10 km) |
| Potomac to Mering | 4,208.47 mi (6,772.88 km) |
| Potomac to Merseburg | 4,152.23 mi (6,682.37 km) |
| Potomac to Merzenich | 3,952.19 mi (6,360.43 km) |
| Potomac to Merzig | 3,994.02 mi (6,427.76 km) |
| Potomac to Meschede | 4,007.52 mi (6,449.47 km) |
| Potomac to Messkirch | 4,139.84 mi (6,662.43 km) |
| Potomac to Messstetten | 4,127.89 mi (6,643.20 km) |
| Potomac to Mettingen | 3,961.12 mi (6,374.80 km) |
| Potomac to Mettlach | 3,992.05 mi (6,424.58 km) |
| Potomac to Mettmann | 3,958.19 mi (6,370.09 km) |
| Potomac to Metzingen | 4,130.36 mi (6,647.17 km) |
| Potomac to Meuselwitz | 4,173.52 mi (6,716.63 km) |
