| Potomac to Miami Gardens (Florida) | 920.25 mi (1,481.00 km) |
| Potomac to Miami Lakes (Florida) | 923.23 mi (1,485.80 km) |
| Potomac to Miami Shores (Florida) | 924.73 mi (1,488.20 km) |
| Potomac to Miami Springs (Florida) | 929.19 mi (1,495.38 km) |
| Potomac to Miamisburg (Ohio) | 380.62 mi (612.55 km) |
| Potomac to Michigan City (Indiana) | 541.94 mi (872.17 km) |
| Potomac to Middle Island (New York) | 259.51 mi (417.65 km) |
| Potomac to Middle River (Maryland) | 47.06 mi (75.74 km) |
| Potomac to Middle Valley (Tennessee) | 513.83 mi (826.92 km) |
| Potomac to Middleburg (Florida) | 674.53 mi (1,085.56 km) |
| Potomac to Middleburg Heights (Ohio) | 293.13 mi (471.74 km) |
| Potomac to Middlesex (New Jersey) | 179.05 mi (288.15 km) |
| Potomac to Middleton (Wisconsin) | 700.07 mi (1,126.65 km) |
| Potomac to Middletown (Connecticut) | 296.40 mi (477.01 km) |
| Potomac to Middletown (Delaware) | 84.42 mi (135.86 km) |
