| Round Rock to Anoka (Minnesota) | 1,040.53 mi (1,674.58 km) |
| Round Rock to Ansonia (Connecticut) | 1,557.94 mi (2,507.26 km) |
| Round Rock to Antelope (California) | 1,455.86 mi (2,342.98 km) |
| Round Rock to Anthem (Arizona) | 874.94 mi (1,408.09 km) |
| Round Rock to Antioch (California) | 1,465.95 mi (2,359.22 km) |
| Round Rock to Antioch (Illinois) | 980.95 mi (1,578.69 km) |
| Round Rock to Apache Junction (Arizona) | 836.22 mi (1,345.76 km) |
| Round Rock to Apex (North Carolina) | 1,142.81 mi (1,839.18 km) |
| Round Rock to Apollo Beach (Florida) | 939.91 mi (1,512.64 km) |
| Round Rock to Apopka (Florida) | 976.36 mi (1,571.31 km) |
| Round Rock to Apple Valley (California) | 1,169.77 mi (1,882.57 km) |
| Round Rock to Apple Valley (Minnesota) | 1,011.89 mi (1,628.49 km) |
| Round Rock to Appleton (Wisconsin) | 1,076.20 mi (1,731.98 km) |
| Round Rock to Arbutus (Maryland) | 1,328.00 mi (2,137.22 km) |
| Round Rock to Arcadia (California) | 1,213.06 mi (1,952.24 km) |
