| Castle Rock to Barking | 4,705.74 mi (7,573.15 km) |
| Castle Rock to Barnet | 4,691.79 mi (7,550.70 km) |
| Castle Rock to Barnoldswick | 4,533.50 mi (7,295.96 km) |
| Castle Rock to Barnsley | 4,571.51 mi (7,357.13 km) |
| Castle Rock to Barnstaple | 4,577.87 mi (7,367.38 km) |
| Castle Rock to Barrhead | 4,389.17 mi (7,063.69 km) |
| Castle Rock to Barri | 4,593.56 mi (7,392.61 km) |
| Castle Rock to Barrow in Furness | 4,490.97 mi (7,227.52 km) |
| Castle Rock to Barton upon Humber | 4,600.95 mi (7,404.52 km) |
| Castle Rock to Barton upon Irwell | 4,544.73 mi (7,314.03 km) |
| Castle Rock to Barwell | 4,615.05 mi (7,427.20 km) |
| Castle Rock to Basford | 4,604.82 mi (7,410.74 km) |
| Castle Rock to Basildon | 4,718.24 mi (7,593.28 km) |
| Castle Rock to Basingstoke | 4,676.17 mi (7,525.58 km) |
| Castle Rock to Bath | 4,626.82 mi (7,446.16 km) |
