| Round Rock to Brandenburg | 5,335.66 mi (8,586.92 km) |
| Round Rock to Brandis | 5,380.28 mi (8,658.73 km) |
| Round Rock to Braunfels | 5,256.37 mi (8,459.30 km) |
| Round Rock to Braunsbedra | 5,356.89 mi (8,621.08 km) |
| Round Rock to Braunschweig | 5,270.21 mi (8,481.58 km) |
| Round Rock to Breckerfeld | 5,195.40 mi (8,361.20 km) |
| Round Rock to Breisach am Rhein | 5,315.15 mi (8,553.91 km) |
| Round Rock to Bremen | 5,179.34 mi (8,335.34 km) |
| Round Rock to Bremerhaven | 5,155.04 mi (8,296.23 km) |
| Round Rock to Bremervorde | 5,176.76 mi (8,331.19 km) |
| Round Rock to Bretten | 5,322.41 mi (8,565.60 km) |
| Round Rock to Bretzfeld | 5,344.83 mi (8,601.67 km) |
| Round Rock to Brieselang | 5,345.44 mi (8,602.65 km) |
| Round Rock to Brilon | 5,231.54 mi (8,419.35 km) |
| Round Rock to Bruchhausen-Vilsen | 5,195.43 mi (8,361.23 km) |
