| Midlothian to Maryland Heights (Missouri) | 565.83 mi (910.62 km) |
| Midlothian to Marysville (California) | 1,448.05 mi (2,330.41 km) |
| Midlothian to Marysville (Ohio) | 927.14 mi (1,492.08 km) |
| Midlothian to Marysville (Washington) | 1,696.33 mi (2,729.98 km) |
| Midlothian to Maryville (Missouri) | 556.73 mi (895.97 km) |
| Midlothian to Maryville (Tennessee) | 777.31 mi (1,250.97 km) |
| Midlothian to Mason (Ohio) | 853.46 mi (1,373.51 km) |
| Midlothian to Mason City (Iowa) | 766.25 mi (1,233.16 km) |
| Midlothian to Massapequa (New York) | 1,417.06 mi (2,280.53 km) |
| Midlothian to Massapequa Park (New York) | 1,418.39 mi (2,282.67 km) |
| Midlothian to Massillon (Ohio) | 1,029.78 mi (1,657.27 km) |
| Midlothian to Mastic (New York) | 1,451.10 mi (2,335.32 km) |
| Midlothian to Mastic Beach (New York) | 1,450.85 mi (2,334.91 km) |
| Midlothian to Matteson (Illinois) | 805.52 mi (1,296.35 km) |
| Midlothian to Matthews (North Carolina) | 951.38 mi (1,531.10 km) |
