| Hemel Hempstead to Alum Rock (California) | 5,337.58 mi (8,590.00 km) |
| Hemel Hempstead to Alvin (Texas) | 4,845.00 mi (7,797.27 km) |
| Hemel Hempstead to Amarillo (Texas) | 4,790.10 mi (7,708.93 km) |
| Hemel Hempstead to Amelia (Ohio) | 3,927.85 mi (6,321.27 km) |
| Hemel Hempstead to American Canyon (California) | 5,303.35 mi (8,534.92 km) |
| Hemel Hempstead to American Fork (Utah) | 4,856.54 mi (7,815.85 km) |
| Hemel Hempstead to Americus (Georgia) | 4,263.09 mi (6,860.77 km) |
| Hemel Hempstead to Ames (Iowa) | 4,143.45 mi (6,668.24 km) |
| Hemel Hempstead to Amherst (Ohio) | 3,740.15 mi (6,019.19 km) |
| Hemel Hempstead to Ammon (Idaho) | 4,693.31 mi (7,553.15 km) |
| Hemel Hempstead to Amsterdam (New York) | 3,354.03 mi (5,397.79 km) |
| Hemel Hempstead to Anacortes (Washington) | 4,719.35 mi (7,595.06 km) |
| Hemel Hempstead to Anaheim (California) | 5,418.08 mi (8,719.55 km) |
| Hemel Hempstead to Anchorage (Alaska) | 4,446.41 mi (7,155.80 km) |
| Hemel Hempstead to Anderson (California) | 5,172.67 mi (8,324.61 km) |
