| Harpenden to Bradford | 148.89 mi (239.61 km) |
| Harpenden to Bradford-on-Avon | 87.75 mi (141.23 km) |
| Harpenden to Bradwell | 24.51 mi (39.45 km) |
| Harpenden to Braintree | 38.74 mi (62.35 km) |
| Harpenden to Bramhall | 130.75 mi (210.42 km) |
| Harpenden to Brandon | 60.08 mi (96.69 km) |
| Harpenden to Braunstone | 65.24 mi (104.99 km) |
| Harpenden to Bredbury | 133.08 mi (214.18 km) |
| Harpenden to Brentwood | 31.27 mi (50.33 km) |
| Harpenden to Bridgnorth | 100.64 mi (161.96 km) |
| Harpenden to Bridgwater | 123.22 mi (198.30 km) |
| Harpenden to Bridlington | 156.60 mi (252.02 km) |
| Harpenden to Bridport | 128.14 mi (206.23 km) |
| Harpenden to Brierley Hill | 87.96 mi (141.55 km) |
| Harpenden to Brighouse | 143.79 mi (231.40 km) |
