| Round Rock to Altus (Oklahoma) | 300.89 mi (484.24 km) |
| Round Rock to Alum Rock (California) | 1,458.30 mi (2,346.90 km) |
| Round Rock to Alvin (Texas) | 162.28 mi (261.17 km) |
| Round Rock to Amarillo (Texas) | 403.23 mi (648.93 km) |
| Round Rock to Amelia (Ohio) | 960.94 mi (1,546.48 km) |
| Round Rock to American Canyon (California) | 1,493.62 mi (2,403.74 km) |
| Round Rock to American Fork (Utah) | 1,044.44 mi (1,680.86 km) |
| Round Rock to Americus (Georgia) | 800.05 mi (1,287.55 km) |
| Round Rock to Ames (Iowa) | 825.49 mi (1,328.51 km) |
| Round Rock to Amherst (Ohio) | 1,141.15 mi (1,836.50 km) |
| Round Rock to Ammon (Idaho) | 1,189.08 mi (1,913.65 km) |
| Round Rock to Amsterdam (New York) | 1,548.87 mi (2,492.67 km) |
| Round Rock to Anacortes (Washington) | 1,804.26 mi (2,903.67 km) |
| Round Rock to Anaheim (California) | 1,200.74 mi (1,932.40 km) |
| Round Rock to Anchorage (Alaska) | 3,126.83 mi (5,032.15 km) |
