| Harpenden to Tours | 309.19 mi (497.59 km) |
| Harpenden to Trappes | 234.32 mi (377.11 km) |
| Harpenden to Treillieres | 315.20 mi (507.27 km) |
| Harpenden to Trelaze | 302.08 mi (486.15 km) |
| Harpenden to Trets | 642.53 mi (1,034.05 km) |
| Harpenden to Triel-sur-Seine | 221.79 mi (356.94 km) |
| Harpenden to Troyes | 312.48 mi (502.89 km) |
| Harpenden to Tulle | 462.94 mi (745.03 km) |
| Harpenden to Urrugne | 587.54 mi (945.56 km) |
| Harpenden to Ussel | 449.79 mi (723.86 km) |
| Harpenden to Vaires-sur-Marne | 242.32 mi (389.98 km) |
| Harpenden to Valbonne | 659.67 mi (1,061.63 km) |
| Harpenden to Valence | 532.74 mi (857.36 km) |
| Harpenden to Valenciennes | 196.07 mi (315.55 km) |
| Harpenden to Valentigney | 439.94 mi (708.02 km) |
