| Middletown to Mendota (California) | 1,953.38 mi (3,143.67 km) |
| Middletown to Mendota Heights (Minnesota) | 582.35 mi (937.20 km) |
| Middletown to Menifee (California) | 1,853.43 mi (2,982.82 km) |
| Middletown to Menlo Park (California) | 2,034.27 mi (3,273.83 km) |
| Middletown to Menomonee Falls (Wisconsin) | 318.42 mi (512.44 km) |
| Middletown to Menomonie (Wisconsin) | 535.79 mi (862.27 km) |
| Middletown to Mentor (Ohio) | 219.24 mi (352.83 km) |
| Middletown to Mequon (Wisconsin) | 318.80 mi (513.06 km) |
| Middletown to Merced (California) | 1,948.07 mi (3,135.12 km) |
| Middletown to Mercedes (Texas) | 1,209.24 mi (1,946.08 km) |
| Middletown to Mercer Island (Washington) | 1,955.18 mi (3,146.55 km) |
| Middletown to Mercerville (New Jersey) | 515.25 mi (829.21 km) |
| Middletown to Meriden (Connecticut) | 623.27 mi (1,003.05 km) |
| Middletown to Meridian (Idaho) | 1,669.57 mi (2,686.92 km) |
| Middletown to Meridian (Mississippi) | 547.92 mi (881.79 km) |
