| Guadarrama to Beyne-Heusay | 831.13 mi (1,337.57 km) |
| Guadarrama to Bierbeek | 820.32 mi (1,320.18 km) |
| Guadarrama to Bilzen | 841.30 mi (1,353.94 km) |
| Guadarrama to Binche | 780.78 mi (1,256.54 km) |
| Guadarrama to Bissegem | 783.50 mi (1,260.92 km) |
| Guadarrama to Blankenberge | 810.73 mi (1,304.75 km) |
| Guadarrama to Blegny | 836.10 mi (1,345.57 km) |
| Guadarrama to Bocholt | 859.88 mi (1,383.84 km) |
| Guadarrama to Boechout | 831.69 mi (1,338.47 km) |
| Guadarrama to Bonheiden | 826.11 mi (1,329.50 km) |
| Guadarrama to Boom | 825.08 mi (1,327.83 km) |
| Guadarrama to Boortmeerbeek | 824.03 mi (1,326.15 km) |
| Guadarrama to Borgerhout | 834.28 mi (1,342.64 km) |
| Guadarrama to Borgloon | 833.20 mi (1,340.91 km) |
| Guadarrama to Bornem | 822.95 mi (1,324.41 km) |
