| Harrow to Travagliato | 633.46 mi (1,019.46 km) |
| Harrow to Traversetolo | 687.97 mi (1,107.18 km) |
| Harrow to Trebaseleghe | 700.56 mi (1,127.45 km) |
| Harrow to Trebisacce | 1,142.89 mi (1,839.30 km) |
| Harrow to Trecastagni | 1,222.51 mi (1,967.44 km) |
| Harrow to Trecate | 593.56 mi (955.24 km) |
| Harrow to Treia | 854.26 mi (1,374.79 km) |
| Harrow to Trento | 644.71 mi (1,037.55 km) |
| Harrow to Trentola | 1,005.44 mi (1,618.10 km) |
| Harrow to Trepuzzi | 1,168.07 mi (1,879.83 km) |
| Harrow to Trescore Balneario | 617.01 mi (992.99 km) |
| Harrow to Treviglio | 617.13 mi (993.18 km) |
| Harrow to Trevignano | 695.46 mi (1,119.23 km) |
| Harrow to Treviso | 703.66 mi (1,132.43 km) |
| Harrow to Trezzano sul Naviglio | 604.27 mi (972.48 km) |
