| Los Alamos to Mauldin (South Carolina) | 1,350.56 mi (2,173.51 km) |
| Los Alamos to Maumee (Ohio) | 1,276.50 mi (2,054.32 km) |
| Los Alamos to Maumelle (Arkansas) | 784.96 mi (1,263.28 km) |
| Los Alamos to Mayagüez (Puerto Rico) | 2,676.91 mi (4,308.08 km) |
| Los Alamos to Mayfield Heights (Ohio) | 1,388.72 mi (2,234.92 km) |
| Los Alamos to Mays Chapel (Maryland) | 1,631.75 mi (2,626.04 km) |
| Los Alamos to Maywood (California) | 686.34 mi (1,104.56 km) |
| Los Alamos to Maywood (Illinois) | 1,071.85 mi (1,724.98 km) |
| Los Alamos to McAlester (Oklahoma) | 595.48 mi (958.32 km) |
| Los Alamos to McAllen (Texas) | 819.37 mi (1,318.65 km) |
| Los Alamos to McCalla (Alabama) | 1,107.84 mi (1,782.89 km) |
| Los Alamos to McComb (Mississippi) | 964.06 mi (1,551.50 km) |
| Los Alamos to McDonough (Georgia) | 1,266.53 mi (2,038.28 km) |
| Los Alamos to McFarland (California) | 725.75 mi (1,167.97 km) |
| Los Alamos to McHenry (Illinois) | 1,059.60 mi (1,705.26 km) |
