| Hemel Hempstead to Hanahan (South Carolina) | 4,047.44 mi (6,513.73 km) |
| Hemel Hempstead to Hanford (California) | 5,332.05 mi (8,581.10 km) |
| Hemel Hempstead to Hannibal (Missouri) | 4,172.65 mi (6,715.23 km) |
| Hemel Hempstead to Hanover (Pennsylvania) | 3,602.57 mi (5,797.77 km) |
| Hemel Hempstead to Hanover Park (Illinois) | 3,941.44 mi (6,343.13 km) |
| Hemel Hempstead to Happy Valley (Oregon) | 4,890.89 mi (7,871.13 km) |
| Hemel Hempstead to Harker Heights (Texas) | 4,849.61 mi (7,804.69 km) |
| Hemel Hempstead to Harlingen (Texas) | 5,108.38 mi (8,221.15 km) |
| Hemel Hempstead to Harper Woods (Michigan) | 3,720.67 mi (5,987.84 km) |
| Hemel Hempstead to Harrisburg (North Carolina) | 3,959.61 mi (6,372.38 km) |
| Hemel Hempstead to Harrisburg (Pennsylvania) | 3,577.90 mi (5,758.08 km) |
| Hemel Hempstead to Harrison (Arkansas) | 4,409.39 mi (7,096.23 km) |
| Hemel Hempstead to Harrison (New Jersey) | 3,446.65 mi (5,546.86 km) |
| Hemel Hempstead to Harrison (New York) | 3,416.85 mi (5,498.89 km) |
| Hemel Hempstead to Harrison (Ohio) | 3,939.25 mi (6,339.61 km) |
