| Round Rock to Brescia | 5,512.99 mi (8,872.30 km) |
| Round Rock to Bressanone | 5,524.61 mi (8,890.99 km) |
| Round Rock to Bresso | 5,471.24 mi (8,805.10 km) |
| Round Rock to Brindisi | 6,026.91 mi (9,699.38 km) |
| Round Rock to Broni | 5,492.14 mi (8,838.75 km) |
| Round Rock to Bronte | 6,017.57 mi (9,684.35 km) |
| Round Rock to Brugherio | 5,475.36 mi (8,811.74 km) |
| Round Rock to Brugnera | 5,591.07 mi (8,997.96 km) |
| Round Rock to Bruino | 5,419.93 mi (8,722.53 km) |
| Round Rock to Brunico | 5,532.32 mi (8,903.41 km) |
| Round Rock to Brusciano | 5,869.60 mi (9,446.21 km) |
| Round Rock to Bucine | 5,649.70 mi (9,092.31 km) |
| Round Rock to Budrio | 5,604.36 mi (9,019.35 km) |
| Round Rock to Busca | 5,438.22 mi (8,751.96 km) |
| Round Rock to Bussolengo | 5,541.10 mi (8,917.54 km) |
