| Harpenden to Benisa | 905.54 mi (1,457.33 km) |
| Harpenden to Berga | 679.28 mi (1,093.20 km) |
| Harpenden to Berja | 1,042.22 mi (1,677.29 km) |
| Harpenden to Bermeo | 590.57 mi (950.42 km) |
| Harpenden to Berriozar | 623.59 mi (1,003.58 km) |
| Harpenden to Betanzos | 693.60 mi (1,116.23 km) |
| Harpenden to Betera | 844.70 mi (1,359.42 km) |
| Harpenden to Bilbao | 603.41 mi (971.10 km) |
| Harpenden to Binefar | 689.37 mi (1,109.43 km) |
| Harpenden to Binisalem | 852.14 mi (1,371.39 km) |
| Harpenden to Blanes | 716.31 mi (1,152.78 km) |
| Harpenden to Boadilla del Monte | 806.00 mi (1,297.13 km) |
| Harpenden to Boiro | 748.54 mi (1,204.66 km) |
| Harpenden to Bolanos de Calatrava | 908.23 mi (1,461.66 km) |
| Harpenden to Bollullos de la Mitacion | 1,039.59 mi (1,673.06 km) |
