| Harpenden to Brighton | 69.49 mi (111.83 km) |
| Harpenden to Brimington | 108.67 mi (174.88 km) |
| Harpenden to Brislington | 97.71 mi (157.24 km) |
| Harpenden to Bristol | 99.50 mi (160.13 km) |
| Harpenden to Brixham | 168.82 mi (271.70 km) |
| Harpenden to Brixton | 26.84 mi (43.19 km) |
| Harpenden to Broadstairs | 83.19 mi (133.88 km) |
| Harpenden to Broadstone | 101.84 mi (163.89 km) |
| Harpenden to Broadwater | 68.36 mi (110.02 km) |
| Harpenden to Brockworth | 76.78 mi (123.57 km) |
| Harpenden to Bromborough | 152.17 mi (244.89 km) |
| Harpenden to Bromley | 32.57 mi (52.42 km) |
| Harpenden to Bromsgrove | 80.78 mi (130.00 km) |
| Harpenden to Broughton Astley | 61.51 mi (98.99 km) |
| Harpenden to Broughty Ferry | 336.98 mi (542.31 km) |
