| Tomball to Mattoon (Illinois) | 767.34 mi (1,234.92 km) |
| Tomball to Mauldin (South Carolina) | 840.41 mi (1,352.52 km) |
| Tomball to Maumee (Ohio) | 1,035.69 mi (1,666.79 km) |
| Tomball to Maumelle (Arkansas) | 378.42 mi (609.01 km) |
| Tomball to Mayagüez (Puerto Rico) | 1,967.10 mi (3,165.74 km) |
| Tomball to Mayfield Heights (Ohio) | 1,116.46 mi (1,796.77 km) |
| Tomball to Mays Chapel (Maryland) | 1,251.29 mi (2,013.76 km) |
| Tomball to Maywood (California) | 1,345.94 mi (2,166.09 km) |
| Tomball to Maywood (Illinois) | 922.02 mi (1,483.85 km) |
| Tomball to McAlester (Oklahoma) | 333.88 mi (537.33 km) |
| Tomball to McAllen (Texas) | 311.59 mi (501.46 km) |
| Tomball to McCalla (Alabama) | 551.16 mi (887.01 km) |
| Tomball to McComb (Mississippi) | 316.03 mi (508.59 km) |
| Tomball to McDonough (Georgia) | 711.75 mi (1,145.46 km) |
| Tomball to McFarland (California) | 1,419.85 mi (2,285.02 km) |
