| Round Rock to Trim | 4,585.79 mi (7,380.12 km) |
| Round Rock to Tuam | 4,506.84 mi (7,253.07 km) |
| Round Rock to Tullamore | 4,565.06 mi (7,346.76 km) |
| Round Rock to Waterford | 4,603.38 mi (7,408.42 km) |
| Round Rock to Wexford | 4,628.10 mi (7,448.21 km) |
| Round Rock to Wicklow | 4,629.04 mi (7,449.72 km) |
| Round Rock to Abano Terme | 5,582.90 mi (8,984.81 km) |
| Round Rock to Abbiategrasso | 5,465.38 mi (8,795.68 km) |
| Round Rock to Acate | 6,033.95 mi (9,710.70 km) |
| Round Rock to Acerra | 5,866.14 mi (9,440.63 km) |
| Round Rock to Aci Castello | 6,040.70 mi (9,721.57 km) |
| Round Rock to Aci Catena | 6,038.29 mi (9,717.69 km) |
| Round Rock to Aci Sant'Antonio | 6,037.57 mi (9,716.53 km) |
| Round Rock to Acireale | 6,039.05 mi (9,718.91 km) |
| Round Rock to Acquaviva delle Fonti | 5,971.11 mi (9,609.58 km) |
