| Potomac to Brandenburg | 4,140.47 mi (6,663.45 km) |
| Potomac to Brandis | 4,176.63 mi (6,721.64 km) |
| Potomac to Braunfels | 4,035.17 mi (6,493.98 km) |
| Potomac to Braunsbedra | 4,150.82 mi (6,680.10 km) |
| Potomac to Braunschweig | 4,068.12 mi (6,547.01 km) |
| Potomac to Breckerfeld | 3,977.57 mi (6,401.27 km) |
| Potomac to Breisach am Rhein | 4,075.04 mi (6,558.14 km) |
| Potomac to Bremen | 3,979.42 mi (6,404.26 km) |
| Potomac to Bremerhaven | 3,958.52 mi (6,370.62 km) |
| Potomac to Bremervorde | 3,981.11 mi (6,406.97 km) |
| Potomac to Bretten | 4,091.55 mi (6,584.72 km) |
| Potomac to Bretzfeld | 4,116.77 mi (6,625.30 km) |
| Potomac to Brieselang | 4,153.00 mi (6,683.60 km) |
| Potomac to Brilon | 4,017.43 mi (6,465.43 km) |
| Potomac to Bruchhausen-Vilsen | 3,993.94 mi (6,427.63 km) |
