| Hemel Hempstead to Blue Springs (Missouri) | 4,315.14 mi (6,944.55 km) |
| Hemel Hempstead to Bluffdale (Utah) | 4,855.89 mi (7,814.80 km) |
| Hemel Hempstead to Bluffton (Indiana) | 3,885.14 mi (6,252.52 km) |
| Hemel Hempstead to Bluffton (South Carolina) | 4,120.72 mi (6,631.65 km) |
| Hemel Hempstead to Blythe (California) | 5,324.26 mi (8,568.57 km) |
| Hemel Hempstead to Blytheville (Arkansas) | 4,300.25 mi (6,920.58 km) |
| Hemel Hempstead to Boca Raton (Florida) | 4,376.63 mi (7,043.50 km) |
| Hemel Hempstead to Boerne (Texas) | 4,958.44 mi (7,979.83 km) |
| Hemel Hempstead to Bogalusa (Louisiana) | 4,556.71 mi (7,333.31 km) |
| Hemel Hempstead to Boiling Springs (South Carolina) | 4,026.62 mi (6,480.22 km) |
| Hemel Hempstead to Boise (Idaho) | 4,816.59 mi (7,751.55 km) |
| Hemel Hempstead to Bolingbrook (Illinois) | 3,953.46 mi (6,362.48 km) |
| Hemel Hempstead to Bolivar (Missouri) | 4,352.78 mi (7,005.12 km) |
| Hemel Hempstead to Bon Air (Virginia) | 3,730.52 mi (6,003.69 km) |
| Hemel Hempstead to Bonham (Texas) | 4,662.18 mi (7,503.06 km) |
