| Unterwellenborn to McKeesport (Pennsylvania) | 4,192.06 mi (6,746.46 km) |
| Unterwellenborn to McKinleyville (California) | 5,561.45 mi (8,950.28 km) |
| Unterwellenborn to McKinney (Texas) | 5,182.82 mi (8,340.95 km) |
| Unterwellenborn to McLean (Virginia) | 4,155.43 mi (6,687.51 km) |
| Unterwellenborn to McMinnville (Oregon) | 5,278.90 mi (8,495.58 km) |
| Unterwellenborn to McMinnville (Tennessee) | 4,647.81 mi (7,479.93 km) |
| Unterwellenborn to McNair (Virginia) | 4,163.59 mi (6,700.65 km) |
| Unterwellenborn to McPherson (Kansas) | 4,939.64 mi (7,949.58 km) |
| Unterwellenborn to Mead Valley (California) | 5,817.23 mi (9,361.93 km) |
| Unterwellenborn to Meadow Woods (Florida) | 4,843.59 mi (7,795.01 km) |
| Unterwellenborn to Meadowbrook (Virginia) | 4,238.32 mi (6,820.92 km) |
| Unterwellenborn to Meadville (Pennsylvania) | 4,141.87 mi (6,665.69 km) |
| Unterwellenborn to Mebane (North Carolina) | 4,374.51 mi (7,040.09 km) |
| Unterwellenborn to Mechanicsville (Virginia) | 4,224.28 mi (6,798.33 km) |
| Unterwellenborn to Medford (Massachusetts) | 3,757.34 mi (6,046.85 km) |
