| Potomac to Marasesti | 4,940.72 mi (7,951.31 km) |
| Potomac to Marghita | 4,692.93 mi (7,552.54 km) |
| Potomac to Marginea | 4,807.70 mi (7,737.25 km) |
| Potomac to Matca | 4,953.54 mi (7,971.96 km) |
| Potomac to Medgidia | 5,049.69 mi (8,126.69 km) |
| Potomac to Media | 4,818.68 mi (7,754.92 km) |
| Potomac to Miercurea-Ciuc | 4,866.16 mi (7,831.32 km) |
| Potomac to Mioveni | 4,890.34 mi (7,870.25 km) |
| Potomac to Mizil | 4,947.22 mi (7,961.78 km) |
| Potomac to Moinesti | 4,889.14 mi (7,868.31 km) |
| Potomac to Moisei | 4,765.35 mi (7,669.09 km) |
| Potomac to Moldova Noua | 4,769.36 mi (7,675.55 km) |
| Potomac to Moreni | 4,916.99 mi (7,913.13 km) |
| Potomac to Motru | 4,818.45 mi (7,754.55 km) |
| Potomac to Murfatlar | 5,058.68 mi (8,141.17 km) |
