| Castrolibero to Beyne-Heusay | 933.67 mi (1,502.59 km) |
| Castrolibero to Bierbeek | 969.35 mi (1,560.02 km) |
| Castrolibero to Bilzen | 950.95 mi (1,530.41 km) |
| Castrolibero to Binche | 963.75 mi (1,551.01 km) |
| Castrolibero to Bissegem | 1,013.16 mi (1,630.52 km) |
| Castrolibero to Blankenberge | 1,040.58 mi (1,674.66 km) |
| Castrolibero to Blegny | 934.22 mi (1,503.48 km) |
| Castrolibero to Bocholt | 966.27 mi (1,555.06 km) |
| Castrolibero to Boechout | 994.09 mi (1,599.84 km) |
| Castrolibero to Bonheiden | 986.48 mi (1,587.59 km) |
| Castrolibero to Boom | 993.75 mi (1,599.29 km) |
| Castrolibero to Boortmeerbeek | 982.89 mi (1,581.81 km) |
| Castrolibero to Borgerhout | 998.56 mi (1,607.03 km) |
| Castrolibero to Borgloon | 952.00 mi (1,532.10 km) |
| Castrolibero to Bornem | 998.35 mi (1,606.68 km) |
