| Castaic to Boppard | 5,727.98 mi (9,218.29 km) |
| Castaic to Borgentreich | 5,706.87 mi (9,184.32 km) |
| Castaic to Borgholzhausen | 5,652.41 mi (9,096.68 km) |
| Castaic to Borken | 5,625.04 mi (9,052.62 km) |
| Castaic to Borna | 5,820.55 mi (9,367.26 km) |
| Castaic to Bornheim | 5,683.68 mi (9,146.99 km) |
| Castaic to Bosel | 5,596.13 mi (9,006.10 km) |
| Castaic to Bottrop | 5,642.34 mi (9,080.46 km) |
| Castaic to Bovenden | 5,724.51 mi (9,212.71 km) |
| Castaic to Brackenheim | 5,831.13 mi (9,384.29 km) |
| Castaic to Brake | 5,593.93 mi (9,002.55 km) |
| Castaic to Brakel | 5,697.18 mi (9,168.72 km) |
| Castaic to Bramsche | 5,628.03 mi (9,057.45 km) |
| Castaic to Brand | 5,659.23 mi (9,107.66 km) |
| Castaic to Brand-Erbisdorf | 5,856.14 mi (9,424.54 km) |
