| Castelnau-le-Lez to Blackburn | 756.11 mi (1,216.84 km) |
| Castelnau-le-Lez to Blackpool | 770.40 mi (1,239.83 km) |
| Castelnau-le-Lez to Blairgowrie | 949.59 mi (1,528.23 km) |
| Castelnau-le-Lez to Blandford Forum | 573.80 mi (923.44 km) |
| Castelnau-le-Lez to Blaydon | 821.86 mi (1,322.65 km) |
| Castelnau-le-Lez to Bletchley | 615.83 mi (991.08 km) |
| Castelnau-le-Lez to Bloxwich | 676.87 mi (1,089.32 km) |
| Castelnau-le-Lez to Blunsdon Saint Andrew | 610.89 mi (983.13 km) |
| Castelnau-le-Lez to Blyth | 829.73 mi (1,335.33 km) |
| Castelnau-le-Lez to Bo'ness | 917.25 mi (1,476.18 km) |
| Castelnau-le-Lez to Bodmin | 621.50 mi (1,000.21 km) |
| Castelnau-le-Lez to Bognor Regis | 538.18 mi (866.12 km) |
| Castelnau-le-Lez to Bolsover | 703.78 mi (1,132.62 km) |
| Castelnau-le-Lez to Bolton | 744.56 mi (1,198.25 km) |
| Castelnau-le-Lez to Bonhill | 931.25 mi (1,498.70 km) |
