| Portsmouth to Magstadt | 470.21 mi (756.74 km) |
| Portsmouth to Mainaschaff | 451.20 mi (726.14 km) |
| Portsmouth to Mainburg | 592.97 mi (954.29 km) |
| Portsmouth to Maintal | 438.21 mi (705.23 km) |
| Portsmouth to Mainz | 415.62 mi (668.88 km) |
| Portsmouth to Maisach | 581.56 mi (935.93 km) |
| Portsmouth to Maisenhausen | 446.75 mi (718.98 km) |
| Portsmouth to Malente | 541.04 mi (870.72 km) |
| Portsmouth to Malsch | 439.99 mi (708.10 km) |
| Portsmouth to Manching | 579.09 mi (931.95 km) |
| Portsmouth to Mannheim | 432.35 mi (695.80 km) |
| Portsmouth to Mansfeld | 545.04 mi (877.15 km) |
| Portsmouth to Marbach am Neckar | 477.72 mi (768.82 km) |
| Portsmouth to Marburg | 430.10 mi (692.17 km) |
| Portsmouth to Marienberg | 621.94 mi (1,000.92 km) |
