| Portsmouth to Mechernich | 338.72 mi (545.12 km) |
| Portsmouth to Meckenbeuren | 525.41 mi (845.57 km) |
| Portsmouth to Meckenheim | 354.52 mi (570.55 km) |
| Portsmouth to Meerane | 590.56 mi (950.42 km) |
| Portsmouth to Meerbusch | 338.23 mi (544.33 km) |
| Portsmouth to Meine | 509.95 mi (820.68 km) |
| Portsmouth to Meinerzhagen | 379.88 mi (611.36 km) |
| Portsmouth to Meiningen | 503.48 mi (810.27 km) |
| Portsmouth to Meissen | 633.19 mi (1,019.02 km) |
| Portsmouth to Meitingen | 554.98 mi (893.16 km) |
| Portsmouth to Melle | 416.42 mi (670.16 km) |
| Portsmouth to Melsungen | 462.98 mi (745.09 km) |
| Portsmouth to Memmelsdorf | 533.44 mi (858.49 km) |
| Portsmouth to Memmingen | 542.14 mi (872.49 km) |
| Portsmouth to Mendig | 368.07 mi (592.35 km) |
