| Hemel Hempstead to Harrison (Wisconsin) | 3,844.80 mi (6,187.61 km) |
| Hemel Hempstead to Harrisonburg (Virginia) | 3,741.36 mi (6,021.15 km) |
| Hemel Hempstead to Hartford (Connecticut) | 3,342.91 mi (5,379.90 km) |
| Hemel Hempstead to Hartford (Wisconsin) | 3,887.99 mi (6,257.11 km) |
| Hemel Hempstead to Hartselle (Alabama) | 4,256.40 mi (6,850.01 km) |
| Hemel Hempstead to Hartsville (Tennessee) | 4,129.93 mi (6,646.49 km) |
| Hemel Hempstead to Harvey (Illinois) | 3,940.21 mi (6,341.15 km) |
| Hemel Hempstead to Harvey (Louisiana) | 4,610.40 mi (7,419.73 km) |
| Hemel Hempstead to Hasbrouck Heights (New Jersey) | 3,438.28 mi (5,533.38 km) |
| Hemel Hempstead to Haslett (Michigan) | 3,763.34 mi (6,056.52 km) |
| Hemel Hempstead to Hastings (Minnesota) | 3,986.37 mi (6,415.44 km) |
| Hemel Hempstead to Hastings (Nebraska) | 4,387.13 mi (7,060.40 km) |
| Hemel Hempstead to Hattiesburg (Mississippi) | 4,508.06 mi (7,255.02 km) |
| Hemel Hempstead to Hauppauge (New York) | 3,404.90 mi (5,479.66 km) |
| Hemel Hempstead to Havelock (North Carolina) | 3,824.41 mi (6,154.80 km) |
