| Castle Rock to Borgosatollo | 5,330.40 mi (8,578.45 km) |
| Castle Rock to Borgosesia | 5,249.76 mi (8,448.67 km) |
| Castle Rock to Boscoreale | 5,712.59 mi (9,193.52 km) |
| Castle Rock to Boscotrecase | 5,711.16 mi (9,191.22 km) |
| Castle Rock to Botticino Sera | 5,327.42 mi (8,573.65 km) |
| Castle Rock to Bovalino Marina | 5,906.82 mi (9,506.11 km) |
| Castle Rock to Boves | 5,289.01 mi (8,511.85 km) |
| Castle Rock to Boville Ernica | 5,631.92 mi (9,063.71 km) |
| Castle Rock to Bovisio Masciago | 5,285.60 mi (8,506.34 km) |
| Castle Rock to Bovolone | 5,372.32 mi (8,645.91 km) |
| Castle Rock to Bra | 5,282.66 mi (8,501.62 km) |
| Castle Rock to Bracciano | 5,563.75 mi (8,953.99 km) |
| Castle Rock to Brandizzo | 5,259.87 mi (8,464.94 km) |
| Castle Rock to Breganze | 5,365.32 mi (8,634.65 km) |
| Castle Rock to Brembate | 5,300.40 mi (8,530.17 km) |
