| Round Rock to Arroyo Grande (California) | 1,364.80 mi (2,196.44 km) |
| Round Rock to Artesia (California) | 1,213.67 mi (1,953.21 km) |
| Round Rock to Artesia (New Mexico) | 428.65 mi (689.84 km) |
| Round Rock to Artondale (Washington) | 1,759.74 mi (2,832.03 km) |
| Round Rock to Arvada (Colorado) | 768.79 mi (1,237.25 km) |
| Round Rock to Arvin (California) | 1,267.33 mi (2,039.56 km) |
| Round Rock to Asbury Lake (Florida) | 947.18 mi (1,524.33 km) |
| Round Rock to Asbury Park (New Jersey) | 1,484.97 mi (2,389.83 km) |
| Round Rock to Ashburn (Virginia) | 1,283.69 mi (2,065.90 km) |
| Round Rock to Asheboro (North Carolina) | 1,091.50 mi (1,756.60 km) |
| Round Rock to Asheville (North Carolina) | 940.65 mi (1,513.83 km) |
| Round Rock to Ashland (California) | 1,478.62 mi (2,379.61 km) |
| Round Rock to Ashland (Kentucky) | 1,013.77 mi (1,631.51 km) |
| Round Rock to Ashland (Ohio) | 1,116.00 mi (1,796.03 km) |
| Round Rock to Ashland (Oregon) | 1,600.39 mi (2,575.59 km) |
