| Harpenden to Apatin | 974.14 mi (1,567.73 km) |
| Harpenden to Arandelovac | 1,090.71 mi (1,755.33 km) |
| Harpenden to Arilje | 1,095.19 mi (1,762.54 km) |
| Harpenden to Babusnica | 1,216.10 mi (1,957.12 km) |
| Harpenden to Bac | 994.99 mi (1,601.28 km) |
| Harpenden to Backa Palanka | 1,006.84 mi (1,620.35 km) |
| Harpenden to Backa Topola | 995.08 mi (1,601.43 km) |
| Harpenden to Backi Petrovac | 1,010.37 mi (1,626.03 km) |
| Harpenden to Bajina Basta | 1,064.77 mi (1,713.58 km) |
| Harpenden to Batajnica | 1,055.93 mi (1,699.35 km) |
| Harpenden to Batocina | 1,118.11 mi (1,799.43 km) |
| Harpenden to Becej | 1,018.77 mi (1,639.55 km) |
| Harpenden to Bela Crkva | 1,102.25 mi (1,773.91 km) |
| Harpenden to Bela Palanka | 1,205.60 mi (1,940.22 km) |
| Harpenden to Belgrade | 1,066.35 mi (1,716.13 km) |
