| Potomac to Montigny-les-Metz | 3,984.82 mi (6,412.94 km) |
| Potomac to Montivilliers | 3,724.41 mi (5,993.86 km) |
| Potomac to Montlouis-sur-Loire | 3,805.47 mi (6,124.31 km) |
| Potomac to Montlucon | 3,910.88 mi (6,293.96 km) |
| Potomac to Montmagny | 3,829.42 mi (6,162.85 km) |
| Potomac to Montmorency | 3,828.01 mi (6,160.59 km) |
| Potomac to Montpellier | 4,046.46 mi (6,512.14 km) |
| Potomac to Montreuil | 3,836.44 mi (6,174.15 km) |
| Potomac to Montrouge | 3,832.44 mi (6,167.72 km) |
| Potomac to Morangis | 3,835.85 mi (6,173.21 km) |
| Potomac to Morieres-les-Avignon | 4,082.50 mi (6,570.14 km) |
| Potomac to Morlaix | 3,575.10 mi (5,753.56 km) |
| Potomac to Morsang-sur-Orge | 3,837.49 mi (6,175.84 km) |
| Potomac to Mouans-Sartoux | 4,184.55 mi (6,734.38 km) |
| Potomac to Mougins | 4,186.19 mi (6,737.03 km) |
