| Portsmouth to Montigny-les-Metz | 342.61 mi (551.38 km) |
| Portsmouth to Montivilliers | 103.73 mi (166.93 km) |
| Portsmouth to Montlouis-sur-Loire | 251.49 mi (404.73 km) |
| Portsmouth to Montlucon | 351.52 mi (565.71 km) |
| Portsmouth to Montmagny | 198.40 mi (319.30 km) |
| Portsmouth to Montmorency | 196.85 mi (316.79 km) |
| Portsmouth to Montpellier | 548.65 mi (882.96 km) |
| Portsmouth to Montreuil | 206.88 mi (332.93 km) |
| Portsmouth to Montrouge | 204.86 mi (329.68 km) |
| Portsmouth to Morangis | 210.60 mi (338.93 km) |
| Portsmouth to Morieres-les-Avignon | 550.51 mi (885.97 km) |
| Portsmouth to Morlaix | 196.72 mi (316.59 km) |
| Portsmouth to Morsang-sur-Orge | 213.15 mi (343.04 km) |
| Portsmouth to Mouans-Sartoux | 623.38 mi (1,003.23 km) |
| Portsmouth to Mougins | 625.16 mi (1,006.10 km) |
