| Round Rock to Brook Park (Ohio) | 1,158.36 mi (1,864.21 km) |
| Round Rock to Brookfield (Illinois) | 952.00 mi (1,532.10 km) |
| Round Rock to Brookfield (Wisconsin) | 1,012.82 mi (1,629.97 km) |
| Round Rock to Brookhaven (Georgia) | 812.39 mi (1,307.41 km) |
| Round Rock to Brookhaven (Mississippi) | 433.48 mi (697.63 km) |
| Round Rock to Brookings (South Dakota) | 952.98 mi (1,533.67 km) |
| Round Rock to Brooklyn (New York) | 1,498.09 mi (2,410.95 km) |
| Round Rock to Brooklyn (Ohio) | 1,162.67 mi (1,871.13 km) |
| Round Rock to Brooklyn Center (Minnesota) | 1,031.94 mi (1,660.74 km) |
| Round Rock to Brooklyn Park (Maryland) | 1,331.13 mi (2,142.25 km) |
| Round Rock to Brooklyn Park (Minnesota) | 1,034.40 mi (1,664.70 km) |
| Round Rock to Brookside (Delaware) | 1,387.06 mi (2,232.26 km) |
| Round Rock to Broomall (Pennsylvania) | 1,412.31 mi (2,272.90 km) |
| Round Rock to Broomfield (Colorado) | 772.68 mi (1,243.51 km) |
| Round Rock to Broussard (Louisiana) | 341.54 mi (549.65 km) |
