| Portsmouth to Mengen | 504.83 mi (812.44 km) |
| Portsmouth to Meppen | 381.18 mi (613.45 km) |
| Portsmouth to Merchweiler | 374.54 mi (602.77 km) |
| Portsmouth to Mering | 568.34 mi (914.66 km) |
| Portsmouth to Merseburg | 568.27 mi (914.54 km) |
| Portsmouth to Merzenich | 332.23 mi (534.68 km) |
| Portsmouth to Merzig | 353.67 mi (569.18 km) |
| Portsmouth to Meschede | 408.21 mi (656.96 km) |
| Portsmouth to Messkirch | 497.57 mi (800.77 km) |
| Portsmouth to Messstetten | 485.63 mi (781.54 km) |
| Portsmouth to Mettingen | 394.67 mi (635.15 km) |
| Portsmouth to Mettlach | 351.95 mi (566.41 km) |
| Portsmouth to Mettmann | 351.15 mi (565.12 km) |
| Portsmouth to Metzingen | 489.11 mi (787.15 km) |
| Portsmouth to Meuselwitz | 582.45 mi (937.36 km) |
