| Hemel Hempstead to Bonhill | 336.47 mi (541.50 km) |
| Hemel Hempstead to Bonnyrigg | 304.35 mi (489.80 km) |
| Hemel Hempstead to Bootle | 157.68 mi (253.76 km) |
| Hemel Hempstead to Borehamwood | 10.68 mi (17.18 km) |
| Hemel Hempstead to Boscombe | 92.50 mi (148.87 km) |
| Hemel Hempstead to Boston | 86.48 mi (139.17 km) |
| Hemel Hempstead to Bottesford | 124.62 mi (200.56 km) |
| Hemel Hempstead to Bourne | 70.29 mi (113.12 km) |
| Hemel Hempstead to Bournemouth | 93.88 mi (151.09 km) |
| Hemel Hempstead to Bournville | 77.87 mi (125.32 km) |
| Hemel Hempstead to Bovingdon | 3.53 mi (5.69 km) |
| Hemel Hempstead to Bowdon | 137.57 mi (221.39 km) |
| Hemel Hempstead to Boxley | 53.48 mi (86.07 km) |
| Hemel Hempstead to Brackley | 34.76 mi (55.93 km) |
| Hemel Hempstead to Bracknell | 26.18 mi (42.13 km) |
