| Guadarrama to Blackburn | 906.49 mi (1,458.85 km) |
| Guadarrama to Blackpool | 909.26 mi (1,463.32 km) |
| Guadarrama to Blairgowrie | 1,100.40 mi (1,770.92 km) |
| Guadarrama to Blandford Forum | 709.61 mi (1,142.00 km) |
| Guadarrama to Blaydon | 993.31 mi (1,598.58 km) |
| Guadarrama to Bletchley | 798.22 mi (1,284.61 km) |
| Guadarrama to Bloxwich | 830.87 mi (1,337.16 km) |
| Guadarrama to Blunsdon Saint Andrew | 763.56 mi (1,228.83 km) |
| Guadarrama to Blyth | 1,005.54 mi (1,618.26 km) |
| Guadarrama to Bo'ness | 1,060.39 mi (1,706.53 km) |
| Guadarrama to Bodmin | 677.32 mi (1,090.04 km) |
| Guadarrama to Bognor Regis | 717.43 mi (1,154.59 km) |
| Guadarrama to Bolsover | 877.47 mi (1,412.15 km) |
| Guadarrama to Bolton | 895.01 mi (1,440.37 km) |
| Guadarrama to Bonhill | 1,058.05 mi (1,702.77 km) |
