| Potomac to Middletown (New York) | 222.67 mi (358.35 km) |
| Potomac to Middletown (Ohio) | 385.05 mi (619.68 km) |
| Potomac to Midland (Michigan) | 484.26 mi (779.35 km) |
| Potomac to Midland (Texas) | 1,476.66 mi (2,376.46 km) |
| Potomac to Midlothian (Illinois) | 582.87 mi (938.03 km) |
| Potomac to Midlothian (Texas) | 1,195.55 mi (1,924.05 km) |
| Potomac to Midlothian (Virginia) | 108.49 mi (174.60 km) |
| Potomac to Midvale (Utah) | 1,832.90 mi (2,949.77 km) |
| Potomac to Midway (Florida) | 814.10 mi (1,310.17 km) |
| Potomac to Midwest City (Oklahoma) | 1,134.11 mi (1,825.18 km) |
| Potomac to Milford (Delaware) | 95.45 mi (153.62 km) |
| Potomac to Milford city (Connecticut) | 266.41 mi (428.75 km) |
| Potomac to Milford Mill (Maryland) | 32.33 mi (52.03 km) |
| Potomac to Mililani Mauka (Hawaii) | 4,819.49 mi (7,756.21 km) |
| Potomac to Mililani Town (Hawaii) | 4,821.69 mi (7,759.76 km) |
