| Harpenden to Tomarza | 1,961.99 mi (3,157.52 km) |
| Harpenden to Tomuk | 1,985.20 mi (3,194.88 km) |
| Harpenden to Tonya | 2,005.73 mi (3,227.91 km) |
| Harpenden to Toprakkale | 2,038.70 mi (3,280.96 km) |
| Harpenden to Torbali | 1,634.32 mi (2,630.19 km) |
| Harpenden to Tortum | 2,129.00 mi (3,426.29 km) |
| Harpenden to Torul | 2,019.01 mi (3,249.29 km) |
| Harpenden to Tosya | 1,778.60 mi (2,862.38 km) |
| Harpenden to Trabzon | 2,019.22 mi (3,249.62 km) |
| Harpenden to Tufanbeyli | 1,987.67 mi (3,198.84 km) |
| Harpenden to Tunceli | 2,090.30 mi (3,364.01 km) |
| Harpenden to Turgutalp | 1,594.74 mi (2,566.49 km) |
| Harpenden to Turgutlu | 1,631.49 mi (2,625.63 km) |
| Harpenden to Turgutreis | 1,686.91 mi (2,714.82 km) |
| Harpenden to Turhal | 1,890.64 mi (3,042.69 km) |
