| Tomball to Hereford (Texas) | 512.55 mi (824.87 km) |
| Tomball to Hermiston (Oregon) | 1,674.98 mi (2,695.62 km) |
| Tomball to Hermitage (Pennsylvania) | 1,144.83 mi (1,842.42 km) |
| Tomball to Hermosa Beach (California) | 1,357.10 mi (2,184.04 km) |
| Tomball to Hernando (Mississippi) | 464.08 mi (746.86 km) |
| Tomball to Herndon (Virginia) | 1,202.02 mi (1,934.47 km) |
| Tomball to Herriman (Utah) | 1,167.53 mi (1,878.96 km) |
| Tomball to Herrin (Illinois) | 652.19 mi (1,049.59 km) |
| Tomball to Hershey (Pennsylvania) | 1,277.53 mi (2,055.99 km) |
| Tomball to Hesperia (California) | 1,299.42 mi (2,091.22 km) |
| Tomball to Hewitt (Texas) | 132.47 mi (213.19 km) |
| Tomball to Hialeah (Florida) | 978.03 mi (1,573.99 km) |
| Tomball to Hialeah Gardens (Florida) | 974.54 mi (1,568.38 km) |
| Tomball to Hibbing (Minnesota) | 1,203.95 mi (1,937.58 km) |
| Tomball to Hickory (North Carolina) | 915.14 mi (1,472.78 km) |
