| Grays to McKeesport (Pennsylvania) | 3,732.63 mi (6,007.09 km) |
| Grays to McKinleyville (California) | 5,231.01 mi (8,418.49 km) |
| Grays to McKinney (Texas) | 4,739.66 mi (7,627.75 km) |
| Grays to McLean (Virginia) | 3,688.76 mi (5,936.48 km) |
| Grays to McMinnville (Oregon) | 4,958.55 mi (7,980.01 km) |
| Grays to McMinnville (Tennessee) | 4,188.05 mi (6,740.01 km) |
| Grays to McNair (Virginia) | 3,697.25 mi (5,950.15 km) |
| Grays to McPherson (Kansas) | 4,512.26 mi (7,261.78 km) |
| Grays to Mead Valley (California) | 5,438.37 mi (8,752.22 km) |
| Grays to Meadow Woods (Florida) | 4,365.84 mi (7,026.14 km) |
| Grays to Meadowbrook (Virginia) | 3,769.06 mi (6,065.72 km) |
| Grays to Meadville (Pennsylvania) | 3,686.24 mi (5,932.43 km) |
| Grays to Mebane (North Carolina) | 3,905.27 mi (6,284.93 km) |
| Grays to Mechanicsville (Virginia) | 3,755.23 mi (6,043.46 km) |
| Grays to Medford (Massachusetts) | 3,289.80 mi (5,294.42 km) |
