| Castalla to Broxbourne | 909.31 mi (1,463.39 km) |
| Castalla to Broxburn | 1,204.82 mi (1,938.96 km) |
| Castalla to Bryn | 1,033.94 mi (1,663.97 km) |
| Castalla to Buckhurst Hill | 901.30 mi (1,450.50 km) |
| Castalla to Buckie | 1,322.30 mi (2,128.04 km) |
| Castalla to Buckingham | 925.86 mi (1,490.02 km) |
| Castalla to Buckley | 1,013.58 mi (1,631.20 km) |
| Castalla to Bucksburn | 1,285.59 mi (2,068.95 km) |
| Castalla to Bude | 865.63 mi (1,393.09 km) |
| Castalla to Bulwell | 995.56 mi (1,602.19 km) |
| Castalla to Burbage | 963.09 mi (1,549.94 km) |
| Castalla to Burgess Hill | 854.18 mi (1,374.68 km) |
| Castalla to Burnham | 894.30 mi (1,439.23 km) |
| Castalla to Burnham-on-Sea | 880.64 mi (1,417.26 km) |
| Castalla to Burnley | 1,052.33 mi (1,693.55 km) |
