| Round Rock to Trezzo sull'Adda | 5,482.04 mi (8,822.49 km) |
| Round Rock to Tricase | 6,075.14 mi (9,776.99 km) |
| Round Rock to Trieste | 5,649.63 mi (9,092.20 km) |
| Round Rock to Triggiano | 5,966.71 mi (9,602.49 km) |
| Round Rock to Trinitapoli | 5,921.21 mi (9,529.27 km) |
| Round Rock to Trissino | 5,557.92 mi (8,944.60 km) |
| Round Rock to Triuggio | 5,469.61 mi (8,802.48 km) |
| Round Rock to Trofarello | 5,432.19 mi (8,742.27 km) |
| Round Rock to Troina | 6,007.41 mi (9,667.99 km) |
| Round Rock to Turin | 5,426.31 mi (8,732.80 km) |
| Round Rock to Udine | 5,611.86 mi (9,031.42 km) |
| Round Rock to Ugento | 6,066.93 mi (9,763.77 km) |
| Round Rock to Umbertide | 5,686.43 mi (9,151.43 km) |
| Round Rock to Urbino | 5,681.88 mi (9,144.11 km) |
| Round Rock to Urgnano | 5,489.56 mi (8,834.60 km) |
