| Boppard to Marysville (California) | 5,534.31 mi (8,906.62 km) |
| Boppard to Marysville (Ohio) | 4,198.85 mi (6,757.39 km) |
| Boppard to Marysville (Washington) | 5,017.68 mi (8,075.18 km) |
| Boppard to Maryville (Missouri) | 4,622.16 mi (7,438.65 km) |
| Boppard to Maryville (Tennessee) | 4,437.61 mi (7,141.64 km) |
| Boppard to Mason (Ohio) | 4,276.52 mi (6,882.39 km) |
| Boppard to Mason City (Iowa) | 4,422.33 mi (7,117.06 km) |
| Boppard to Massapequa (New York) | 3,787.03 mi (6,094.63 km) |
| Boppard to Massapequa Park (New York) | 3,785.56 mi (6,092.27 km) |
| Boppard to Massillon (Ohio) | 4,101.81 mi (6,601.23 km) |
| Boppard to Mastic (New York) | 3,755.57 mi (6,044.00 km) |
| Boppard to Mastic Beach (New York) | 3,757.00 mi (6,046.31 km) |
| Boppard to Matteson (Illinois) | 4,304.49 mi (6,927.41 km) |
| Boppard to Matthews (North Carolina) | 4,336.39 mi (6,978.75 km) |
| Boppard to Mattoon (Illinois) | 4,425.95 mi (7,122.88 km) |
