| Round Rock to Boppard | 5,236.73 mi (8,427.70 km) |
| Round Rock to Borgentreich | 5,250.33 mi (8,449.59 km) |
| Round Rock to Borgholzhausen | 5,196.50 mi (8,362.96 km) |
| Round Rock to Borken | 5,153.36 mi (8,293.53 km) |
| Round Rock to Borna | 5,384.86 mi (8,666.10 km) |
| Round Rock to Bornheim | 5,195.96 mi (8,362.09 km) |
| Round Rock to Bosel | 5,151.94 mi (8,291.25 km) |
| Round Rock to Bottrop | 5,166.16 mi (8,314.13 km) |
| Round Rock to Bovenden | 5,273.94 mi (8,487.59 km) |
| Round Rock to Brackenheim | 5,334.52 mi (8,585.08 km) |
| Round Rock to Brake | 5,159.20 mi (8,302.93 km) |
| Round Rock to Brakel | 5,242.44 mi (8,436.89 km) |
| Round Rock to Bramsche | 5,174.36 mi (8,327.33 km) |
| Round Rock to Brand | 5,164.58 mi (8,311.58 km) |
| Round Rock to Brand-Erbisdorf | 5,424.01 mi (8,729.10 km) |
