| Tomball to Horizon West (Florida) | 851.25 mi (1,369.95 km) |
| Tomball to Hormigueros (Puerto Rico) | 1,970.19 mi (3,170.71 km) |
| Tomball to Horn Lake (Mississippi) | 466.57 mi (750.86 km) |
| Tomball to Hot Springs (Arkansas) | 338.63 mi (544.97 km) |
| Tomball to Hot Springs Village (Arkansas) | 351.15 mi (565.12 km) |
| Tomball to Houma (Louisiana) | 296.61 mi (477.34 km) |
| Tomball to Houston (Texas) | 25.44 mi (40.94 km) |
| Tomball to Howard (Wisconsin) | 1,081.05 mi (1,739.78 km) |
| Tomball to Huber Heights (Ohio) | 936.21 mi (1,506.69 km) |
| Tomball to Hudson (Florida) | 788.36 mi (1,268.74 km) |
| Tomball to Hudson (Ohio) | 1,104.61 mi (1,777.70 km) |
| Tomball to Hudson (Wisconsin) | 1,039.26 mi (1,672.53 km) |
| Tomball to Hueytown (Alabama) | 554.72 mi (892.74 km) |
| Tomball to Hugo (Minnesota) | 1,051.34 mi (1,691.97 km) |
| Tomball to Humacao (Puerto Rico) | 2,043.95 mi (3,289.42 km) |
