| Tomball to Montgomeryville (Pennsylvania) | 1,343.02 mi (2,161.38 km) |
| Tomball to Monticello (Minnesota) | 1,055.12 mi (1,698.05 km) |
| Tomball to Montrose (Colorado) | 905.72 mi (1,457.62 km) |
| Tomball to Moody (Alabama) | 587.32 mi (945.20 km) |
| Tomball to Moore (Oklahoma) | 377.38 mi (607.34 km) |
| Tomball to Moorestown-Lenola (New Jersey) | 1,348.13 mi (2,169.61 km) |
| Tomball to Mooresville (North Carolina) | 937.46 mi (1,508.69 km) |
| Tomball to Moorhead (Minnesota) | 1,160.41 mi (1,867.51 km) |
| Tomball to Moorpark (California) | 1,387.13 mi (2,232.37 km) |
| Tomball to Moraga (California) | 1,603.64 mi (2,580.81 km) |
| Tomball to Moreno Valley (California) | 1,289.43 mi (2,075.14 km) |
| Tomball to Morgan City (Louisiana) | 266.54 mi (428.96 km) |
| Tomball to Morgan Hill (California) | 1,568.41 mi (2,524.11 km) |
| Tomball to Morganton (North Carolina) | 895.42 mi (1,441.05 km) |
| Tomball to Morgantown (West Virginia) | 1,103.67 mi (1,776.19 km) |
