| Potomac to Murphy (Texas) | 1,158.59 mi (1,864.57 km) |
| Potomac to Murray (Kentucky) | 629.08 mi (1,012.40 km) |
| Potomac to Murray (Utah) | 1,832.29 mi (2,948.79 km) |
| Potomac to Murraysville (North Carolina) | 328.24 mi (528.26 km) |
| Potomac to Murrieta (California) | 2,240.62 mi (3,605.92 km) |
| Potomac to Murrysville (Pennsylvania) | 163.96 mi (263.86 km) |
| Potomac to Muscatine (Iowa) | 749.71 mi (1,206.55 km) |
| Potomac to Muscle Shoals (Alabama) | 647.50 mi (1,042.06 km) |
| Potomac to Muscoy (California) | 2,234.61 mi (3,596.26 km) |
| Potomac to Muskego (Wisconsin) | 629.57 mi (1,013.20 km) |
| Potomac to Muskegon (Michigan) | 553.82 mi (891.28 km) |
| Potomac to Muskogee (Oklahoma) | 1,020.61 mi (1,642.51 km) |
| Potomac to Mustang (Oklahoma) | 1,154.55 mi (1,858.07 km) |
| Potomac to Myers Corner (New York) | 249.16 mi (400.99 km) |
| Potomac to Myrtle Beach (South Carolina) | 378.37 mi (608.92 km) |
