| Mill Valley to McHenry (Illinois) | 1,822.52 mi (2,933.06 km) |
| Mill Valley to McKeesport (Pennsylvania) | 2,272.60 mi (3,657.39 km) |
| Mill Valley to McKinleyville (California) | 225.62 mi (363.10 km) |
| Mill Valley to McKinney (Texas) | 1,485.24 mi (2,390.27 km) |
| Mill Valley to McLean (Virginia) | 2,429.91 mi (3,910.57 km) |
| Mill Valley to McMinnville (Oregon) | 505.66 mi (813.78 km) |
| Mill Valley to McMinnville (Tennessee) | 2,026.52 mi (3,261.37 km) |
| Mill Valley to McNair (Virginia) | 2,418.42 mi (3,892.07 km) |
| Mill Valley to McPherson (Kansas) | 1,348.39 mi (2,170.03 km) |
| Mill Valley to Mead Valley (California) | 407.18 mi (655.30 km) |
| Mill Valley to Meadow Woods (Florida) | 2,451.36 mi (3,945.08 km) |
| Mill Valley to Meadowbrook (Virginia) | 2,440.41 mi (3,927.46 km) |
| Mill Valley to Meadville (Pennsylvania) | 2,243.22 mi (3,610.12 km) |
| Mill Valley to Mebane (North Carolina) | 2,369.49 mi (3,813.32 km) |
| Mill Valley to Mechanicsville (Virginia) | 2,443.18 mi (3,931.93 km) |
