| Potomac to Blumberg | 4,120.51 mi (6,631.31 km) |
| Potomac to Bobenheim-Roxheim | 4,061.33 mi (6,536.07 km) |
| Potomac to Bobingen | 4,201.48 mi (6,761.63 km) |
| Potomac to Boblingen | 4,114.74 mi (6,622.03 km) |
| Potomac to Bocholt | 3,928.60 mi (6,322.47 km) |
| Potomac to Bochum | 3,961.73 mi (6,375.78 km) |
| Potomac to Bockenem | 4,060.72 mi (6,535.11 km) |
| Potomac to Bockhorn | 3,941.06 mi (6,342.52 km) |
| Potomac to Bogen | 4,256.31 mi (6,849.87 km) |
| Potomac to Bohl-Iggelheim | 4,065.42 mi (6,542.67 km) |
| Potomac to Bohmte | 3,980.53 mi (6,406.05 km) |
| Potomac to Boizenburg | 4,043.97 mi (6,508.14 km) |
| Potomac to Bonen | 3,979.95 mi (6,405.11 km) |
| Potomac to Bonn | 3,977.72 mi (6,401.52 km) |
| Potomac to Bopfingen | 4,164.09 mi (6,701.45 km) |
