| Box Elder to Mauldin (South Carolina) | 1,277.07 mi (2,055.24 km) |
| Box Elder to Maumee (Ohio) | 996.89 mi (1,604.34 km) |
| Box Elder to Maumelle (Arkansas) | 855.15 mi (1,376.24 km) |
| Box Elder to Mayagüez (Puerto Rico) | 2,741.69 mi (4,412.32 km) |
| Box Elder to Mayfield Heights (Ohio) | 1,107.45 mi (1,782.27 km) |
| Box Elder to Mays Chapel (Maryland) | 1,393.22 mi (2,242.17 km) |
| Box Elder to Maywood (California) | 1,067.53 mi (1,718.02 km) |
| Box Elder to Maywood (Illinois) | 784.12 mi (1,261.91 km) |
| Box Elder to McAlester (Oklahoma) | 743.99 mi (1,197.34 km) |
| Box Elder to McAllen (Texas) | 1,265.07 mi (2,035.93 km) |
| Box Elder to McCalla (Alabama) | 1,139.47 mi (1,833.81 km) |
| Box Elder to McComb (Mississippi) | 1,122.35 mi (1,806.25 km) |
| Box Elder to McDonough (Georgia) | 1,253.41 mi (2,017.16 km) |
| Box Elder to McFarland (California) | 1,033.07 mi (1,662.57 km) |
| Box Elder to McHenry (Illinois) | 753.49 mi (1,212.63 km) |
