| Harpenden to Tallinn | 1,102.17 mi (1,773.76 km) |
| Harpenden to Tartu | 1,152.20 mi (1,854.29 km) |
| Harpenden to Valga | 1,119.91 mi (1,802.32 km) |
| Harpenden to Viljandi | 1,112.40 mi (1,790.23 km) |
| Harpenden to Voru | 1,155.48 mi (1,859.56 km) |
| Harpenden to Aanekoski | 1,213.50 mi (1,952.94 km) |
| Harpenden to Alajarvi | 1,173.11 mi (1,887.94 km) |
| Harpenden to Alavus | 1,153.72 mi (1,856.74 km) |
| Harpenden to Ekenas | 1,071.27 mi (1,724.05 km) |
| Harpenden to Espoo | 1,116.30 mi (1,796.50 km) |
| Harpenden to Eura | 1,062.15 mi (1,709.36 km) |
| Harpenden to Eurajoki | 1,053.94 mi (1,696.15 km) |
| Harpenden to Forssa | 1,099.48 mi (1,769.43 km) |
| Harpenden to Hakkila | 1,127.77 mi (1,814.98 km) |
| Harpenden to Halikko | 1,070.95 mi (1,723.52 km) |
