| Castelo Branco to Broxbourne | 898.64 mi (1,446.22 km) |
| Castelo Branco to Broxburn | 1,128.66 mi (1,816.41 km) |
| Castelo Branco to Bryn | 972.28 mi (1,564.73 km) |
| Castelo Branco to Buckhurst Hill | 892.48 mi (1,436.31 km) |
| Castelo Branco to Buckie | 1,250.45 mi (2,012.40 km) |
| Castelo Branco to Buckingham | 896.93 mi (1,443.48 km) |
| Castelo Branco to Buckley | 945.88 mi (1,522.25 km) |
| Castelo Branco to Bucksburn | 1,223.09 mi (1,968.38 km) |
| Castelo Branco to Bude | 773.82 mi (1,245.34 km) |
| Castelo Branco to Bulwell | 958.24 mi (1,542.14 km) |
| Castelo Branco to Burbage | 925.41 mi (1,489.31 km) |
| Castelo Branco to Burgess Hill | 847.58 mi (1,364.05 km) |
| Castelo Branco to Burnham | 873.78 mi (1,406.21 km) |
| Castelo Branco to Burnham-on-Sea | 818.30 mi (1,316.92 km) |
| Castelo Branco to Burnley | 996.15 mi (1,603.14 km) |
