| Castaic to Beyne-Heusay | 5,650.42 mi (9,093.46 km) |
| Castaic to Bierbeek | 5,612.87 mi (9,033.04 km) |
| Castaic to Bilzen | 5,633.88 mi (9,066.85 km) |
| Castaic to Binche | 5,615.91 mi (9,037.94 km) |
| Castaic to Bissegem | 5,566.12 mi (8,957.81 km) |
| Castaic to Blankenberge | 5,539.54 mi (8,915.03 km) |
| Castaic to Blegny | 5,650.42 mi (9,093.47 km) |
| Castaic to Bocholt | 5,620.47 mi (9,045.28 km) |
| Castaic to Boechout | 5,588.60 mi (8,993.98 km) |
| Castaic to Bonheiden | 5,595.88 mi (9,005.70 km) |
| Castaic to Boom | 5,588.35 mi (8,993.58 km) |
| Castaic to Boortmeerbeek | 5,599.37 mi (9,011.31 km) |
| Castaic to Borgerhout | 5,584.26 mi (8,987.00 km) |
| Castaic to Borgloon | 5,631.88 mi (9,063.63 km) |
| Castaic to Bornem | 5,583.47 mi (8,985.73 km) |
