| Boppard to Mauldin (South Carolina) | 4,417.24 mi (7,108.86 km) |
| Boppard to Maumee (Ohio) | 4,147.73 mi (6,675.12 km) |
| Boppard to Maumelle (Arkansas) | 4,810.58 mi (7,741.89 km) |
| Boppard to Mayagüez (Puerto Rico) | 4,588.81 mi (7,384.97 km) |
| Boppard to Mayfield Heights (Ohio) | 4,065.23 mi (6,542.36 km) |
| Boppard to Mays Chapel (Maryland) | 3,970.54 mi (6,389.96 km) |
| Boppard to Maywood (California) | 5,743.84 mi (9,243.81 km) |
| Boppard to Maywood (Illinois) | 4,290.35 mi (6,904.66 km) |
| Boppard to McAlester (Oklahoma) | 4,933.82 mi (7,940.21 km) |
| Boppard to McAllen (Texas) | 5,489.63 mi (8,834.70 km) |
| Boppard to McCalla (Alabama) | 4,679.78 mi (7,531.38 km) |
| Boppard to McComb (Mississippi) | 4,920.66 mi (7,919.03 km) |
| Boppard to McDonough (Georgia) | 4,557.53 mi (7,334.64 km) |
| Boppard to McFarland (California) | 5,675.17 mi (9,133.30 km) |
| Boppard to McHenry (Illinois) | 4,284.95 mi (6,895.97 km) |
