| Guadarrama to Bonnyrigg | 1,051.30 mi (1,691.90 km) |
| Guadarrama to Bootle | 884.01 mi (1,422.68 km) |
| Guadarrama to Borehamwood | 780.37 mi (1,255.89 km) |
| Guadarrama to Boscombe | 702.88 mi (1,131.17 km) |
| Guadarrama to Boston | 871.05 mi (1,401.82 km) |
| Guadarrama to Bottesford | 903.99 mi (1,454.84 km) |
| Guadarrama to Bourne | 853.72 mi (1,373.92 km) |
| Guadarrama to Bournemouth | 702.24 mi (1,130.15 km) |
| Guadarrama to Bournville | 818.66 mi (1,317.50 km) |
| Guadarrama to Bovingdon | 781.93 mi (1,258.39 km) |
| Guadarrama to Bowdon | 881.38 mi (1,418.45 km) |
| Guadarrama to Boxley | 766.96 mi (1,234.30 km) |
| Guadarrama to Brackley | 797.11 mi (1,282.82 km) |
| Guadarrama to Bracknell | 759.16 mi (1,221.74 km) |
| Guadarrama to Bradford | 913.48 mi (1,470.11 km) |
