| Round Rock to Beacon (New York) | 1,518.78 mi (2,444.24 km) |
| Round Rock to Bear (Delaware) | 1,387.64 mi (2,233.20 km) |
| Round Rock to Beatrice (Nebraska) | 675.40 mi (1,086.95 km) |
| Round Rock to Beaufort (South Carolina) | 1,005.88 mi (1,618.81 km) |
| Round Rock to Beaumont (California) | 1,150.97 mi (1,852.31 km) |
| Round Rock to Beaumont (Texas) | 212.12 mi (341.37 km) |
| Round Rock to Beaver Dam (Wisconsin) | 1,016.99 mi (1,636.68 km) |
| Round Rock to Beavercreek (Ohio) | 995.54 mi (1,602.17 km) |
| Round Rock to Beaverton (Oregon) | 1,703.12 mi (2,740.90 km) |
| Round Rock to Beckley (West Virginia) | 1,065.23 mi (1,714.32 km) |
| Round Rock to Bedford (Indiana) | 855.78 mi (1,377.25 km) |
| Round Rock to Bedford (Ohio) | 1,170.03 mi (1,882.98 km) |
| Round Rock to Bedford (Texas) | 163.25 mi (262.72 km) |
| Round Rock to Bedford Heights (Ohio) | 1,171.81 mi (1,885.85 km) |
| Round Rock to Beech Grove (Indiana) | 910.15 mi (1,464.74 km) |
