| Castle Rock to Brighton | 4,727.67 mi (7,608.46 km) |
| Castle Rock to Brimington | 4,586.20 mi (7,380.77 km) |
| Castle Rock to Brislington | 4,618.28 mi (7,432.41 km) |
| Castle Rock to Bristol | 4,615.52 mi (7,427.96 km) |
| Castle Rock to Brixham | 4,624.21 mi (7,441.94 km) |
| Castle Rock to Brixton | 4,702.27 mi (7,567.57 km) |
| Castle Rock to Broadstairs | 4,760.08 mi (7,660.60 km) |
| Castle Rock to Broadstone | 4,664.41 mi (7,506.65 km) |
| Castle Rock to Broadwater | 4,719.06 mi (7,594.59 km) |
| Castle Rock to Brockworth | 4,615.64 mi (7,428.15 km) |
| Castle Rock to Bromborough | 4,529.03 mi (7,288.76 km) |
| Castle Rock to Bromley | 4,709.14 mi (7,578.64 km) |
| Castle Rock to Bromsgrove | 4,599.70 mi (7,402.51 km) |
| Castle Rock to Broughton Astley | 4,620.73 mi (7,436.35 km) |
| Castle Rock to Broughty Ferry | 4,414.07 mi (7,103.76 km) |
