| Unterwellenborn to Boppard | 171.98 mi (276.77 km) |
| Unterwellenborn to Borgentreich | 113.91 mi (183.31 km) |
| Unterwellenborn to Borgholzhausen | 168.13 mi (270.59 km) |
| Unterwellenborn to Borken | 213.83 mi (344.13 km) |
| Unterwellenborn to Borna | 55.94 mi (90.02 km) |
| Unterwellenborn to Bornheim | 194.23 mi (312.58 km) |
| Unterwellenborn to Bosel | 220.12 mi (354.25 km) |
| Unterwellenborn to Bottrop | 205.00 mi (329.91 km) |
| Unterwellenborn to Bovenden | 92.09 mi (148.21 km) |
| Unterwellenborn to Brackenheim | 151.76 mi (244.23 km) |
| Unterwellenborn to Brake | 223.55 mi (359.77 km) |
| Unterwellenborn to Brakel | 122.10 mi (196.51 km) |
| Unterwellenborn to Bramsche | 191.22 mi (307.73 km) |
| Unterwellenborn to Brand | 230.95 mi (371.67 km) |
| Unterwellenborn to Brand-Erbisdorf | 83.43 mi (134.27 km) |
