| Castle Rock to Belper | 4,592.37 mi (7,390.71 km) |
| Castle Rock to Bentley | 4,582.95 mi (7,375.54 km) |
| Castle Rock to Berkhampstead | 4,674.61 mi (7,523.06 km) |
| Castle Rock to Berwick-Upon-Tweed | 4,468.39 mi (7,191.17 km) |
| Castle Rock to Beverley | 4,595.26 mi (7,395.36 km) |
| Castle Rock to Bewdley | 4,589.19 mi (7,385.59 km) |
| Castle Rock to Bexleyheath | 4,711.07 mi (7,581.73 km) |
| Castle Rock to Bicester | 4,648.51 mi (7,481.06 km) |
| Castle Rock to Bickenhill | 4,607.13 mi (7,414.46 km) |
| Castle Rock to Bickley | 4,710.31 mi (7,580.51 km) |
| Castle Rock to Biddulph | 4,565.07 mi (7,346.76 km) |
| Castle Rock to Bideford | 4,574.97 mi (7,362.70 km) |
| Castle Rock to Bidston | 4,523.06 mi (7,279.17 km) |
| Castle Rock to Biggleswade | 4,671.90 mi (7,518.70 km) |
| Castle Rock to Billericay | 4,713.80 mi (7,586.13 km) |
