| Witham to McKeesport (Pennsylvania) | 3,736.56 mi (6,013.41 km) |
| Witham to McKinleyville (California) | 5,222.37 mi (8,404.59 km) |
| Witham to McKinney (Texas) | 4,741.32 mi (7,630.41 km) |
| Witham to McLean (Virginia) | 3,694.01 mi (5,944.93 km) |
| Witham to McMinnville (Oregon) | 4,949.14 mi (7,964.87 km) |
| Witham to McMinnville (Tennessee) | 4,192.10 mi (6,746.53 km) |
| Witham to McNair (Virginia) | 3,702.43 mi (5,958.49 km) |
| Witham to McPherson (Kansas) | 4,511.92 mi (7,261.24 km) |
| Witham to Mead Valley (California) | 5,433.49 mi (8,744.35 km) |
| Witham to Meadow Woods (Florida) | 4,373.78 mi (7,038.92 km) |
| Witham to Meadowbrook (Virginia) | 3,774.85 mi (6,075.04 km) |
| Witham to Meadville (Pennsylvania) | 3,689.53 mi (5,937.73 km) |
| Witham to Mebane (North Carolina) | 3,911.07 mi (6,294.26 km) |
| Witham to Mechanicsville (Virginia) | 3,760.98 mi (6,052.71 km) |
| Witham to Medford (Massachusetts) | 3,295.17 mi (5,303.06 km) |
