| Round Rock to Beverly Hills (California) | 1,233.42 mi (1,985.00 km) |
| Round Rock to Beverly Hills (Florida) | 918.68 mi (1,478.48 km) |
| Round Rock to Beverly Hills (Michigan) | 1,149.20 mi (1,849.46 km) |
| Round Rock to Bexley (Ohio) | 1,053.99 mi (1,696.23 km) |
| Round Rock to Biddeford (Maine) | 1,735.77 mi (2,793.45 km) |
| Round Rock to Big Bear City (California) | 1,143.32 mi (1,840.00 km) |
| Round Rock to Big Lake (Minnesota) | 1,045.31 mi (1,682.27 km) |
| Round Rock to Big Spring (Texas) | 254.23 mi (409.15 km) |
| Round Rock to Billings (Montana) | 1,206.48 mi (1,941.64 km) |
| Round Rock to Biloxi (Mississippi) | 518.68 mi (834.74 km) |
| Round Rock to Binghamton (New York) | 1,444.70 mi (2,325.02 km) |
| Round Rock to Birmingham (Alabama) | 669.07 mi (1,076.77 km) |
| Round Rock to Birmingham (Michigan) | 1,151.21 mi (1,852.70 km) |
| Round Rock to Bismarck (North Dakota) | 1,137.50 mi (1,830.62 km) |
| Round Rock to Bithlo (Florida) | 1,003.47 mi (1,614.93 km) |
