| Preakness to Mendota (California) | 2,471.50 mi (3,977.49 km) |
| Preakness to Mendota Heights (Minnesota) | 992.66 mi (1,597.54 km) |
| Preakness to Menifee (California) | 2,388.44 mi (3,843.82 km) |
| Preakness to Menlo Park (California) | 2,545.94 mi (4,097.29 km) |
| Preakness to Menomonee Falls (Wisconsin) | 728.40 mi (1,172.25 km) |
| Preakness to Menomonie (Wisconsin) | 933.39 mi (1,502.14 km) |
| Preakness to Mentor (Ohio) | 372.61 mi (599.65 km) |
| Preakness to Mequon (Wisconsin) | 722.27 mi (1,162.38 km) |
| Preakness to Merced (California) | 2,463.11 mi (3,963.99 km) |
| Preakness to Mercedes (Texas) | 1,694.73 mi (2,727.40 km) |
| Preakness to Mercer Island (Washington) | 2,380.28 mi (3,830.69 km) |
| Preakness to Mercerville (New Jersey) | 54.37 mi (87.49 km) |
| Preakness to Meriden (Connecticut) | 85.02 mi (136.82 km) |
| Preakness to Meridian (Idaho) | 2,140.75 mi (3,445.21 km) |
| Preakness to Meridian (Mississippi) | 993.82 mi (1,599.39 km) |
