| Hemel Hempstead to Black Forest (Colorado) | 4,688.48 mi (7,545.37 km) |
| Hemel Hempstead to Blackfoot (Idaho) | 4,720.62 mi (7,597.10 km) |
| Hemel Hempstead to Blackhawk (California) | 5,314.13 mi (8,552.26 km) |
| Hemel Hempstead to Blacksburg (Virginia) | 3,860.17 mi (6,212.34 km) |
| Hemel Hempstead to Blackwells Mills (New Jersey) | 3,476.33 mi (5,594.61 km) |
| Hemel Hempstead to Blaine (Minnesota) | 3,978.44 mi (6,402.68 km) |
| Hemel Hempstead to Bloomingdale (Florida) | 4,391.23 mi (7,067.00 km) |
| Hemel Hempstead to Bloomingdale (Illinois) | 3,940.85 mi (6,342.18 km) |
| Hemel Hempstead to Bloomington (California) | 5,390.74 mi (8,675.56 km) |
| Hemel Hempstead to Bloomington (Illinois) | 4,043.78 mi (6,507.84 km) |
| Hemel Hempstead to Bloomington (Indiana) | 4,011.77 mi (6,456.32 km) |
| Hemel Hempstead to Bloomington (Minnesota) | 3,998.25 mi (6,434.56 km) |
| Hemel Hempstead to Bloomsburg (Pennsylvania) | 3,528.51 mi (5,678.58 km) |
| Hemel Hempstead to Blue Ash (Ohio) | 3,923.84 mi (6,314.81 km) |
| Hemel Hempstead to Blue Island (Illinois) | 3,938.97 mi (6,339.16 km) |
