| Castalla to Barnet | 901.80 mi (1,451.30 km) |
| Castalla to Barnoldswick | 1,060.79 mi (1,707.18 km) |
| Castalla to Barnsley | 1,034.21 mi (1,664.39 km) |
| Castalla to Barnstaple | 878.10 mi (1,413.17 km) |
| Castalla to Barrhead | 1,201.02 mi (1,932.85 km) |
| Castalla to Barri | 893.88 mi (1,438.56 km) |
| Castalla to Barrow in Furness | 1,078.64 mi (1,735.91 km) |
| Castalla to Barton upon Humber | 1,042.44 mi (1,677.64 km) |
| Castalla to Barton upon Irwell | 1,031.17 mi (1,659.51 km) |
| Castalla to Barwell | 965.88 mi (1,554.43 km) |
| Castalla to Basford | 993.94 mi (1,599.58 km) |
| Castalla to Basildon | 898.81 mi (1,446.50 km) |
| Castalla to Basingstoke | 875.65 mi (1,409.22 km) |
| Castalla to Bath | 887.03 mi (1,427.53 km) |
| Castalla to Bathgate | 1,203.53 mi (1,936.89 km) |
