| Southborough to Brandenburg | 530.80 mi (854.24 km) |
| Southborough to Brandis | 533.37 mi (858.37 km) |
| Southborough to Braunfels | 356.81 mi (574.23 km) |
| Southborough to Braunsbedra | 503.03 mi (809.55 km) |
| Southborough to Braunschweig | 445.09 mi (716.30 km) |
| Southborough to Breckerfeld | 311.66 mi (501.56 km) |
| Southborough to Breisach am Rhein | 392.24 mi (631.25 km) |
| Southborough to Bremen | 385.40 mi (620.24 km) |
| Southborough to Bremerhaven | 387.62 mi (623.81 km) |
| Southborough to Bremervorde | 407.12 mi (655.19 km) |
| Southborough to Bretten | 401.56 mi (646.25 km) |
| Southborough to Bretzfeld | 427.74 mi (688.39 km) |
| Southborough to Brieselang | 551.34 mi (887.29 km) |
| Southborough to Brilon | 359.02 mi (577.79 km) |
| Southborough to Bruchhausen-Vilsen | 388.88 mi (625.84 km) |
