| Harpenden to Torgelow | 612.30 mi (985.40 km) |
| Harpenden to Tornesch | 440.22 mi (708.46 km) |
| Harpenden to Tostedt | 434.59 mi (699.40 km) |
| Harpenden to Traunreut | 633.13 mi (1,018.92 km) |
| Harpenden to Traunstein | 638.58 mi (1,027.69 km) |
| Harpenden to Trebbin | 576.09 mi (927.13 km) |
| Harpenden to Trebur | 403.50 mi (649.38 km) |
| Harpenden to Treuchtlingen | 533.39 mi (858.41 km) |
| Harpenden to Trier | 336.86 mi (542.13 km) |
| Harpenden to Trittau | 466.36 mi (750.54 km) |
| Harpenden to Troisdorf | 331.37 mi (533.28 km) |
| Harpenden to Trossingen | 475.47 mi (765.19 km) |
| Harpenden to Trostberg an der Alz | 630.08 mi (1,014.02 km) |
| Harpenden to Tubingen | 474.11 mi (763.01 km) |
| Harpenden to Tuttlingen | 486.14 mi (782.37 km) |
