| Potomac to Beelitz | 4,162.50 mi (6,698.89 km) |
| Potomac to Beilngries | 4,203.67 mi (6,765.16 km) |
| Potomac to Bellheim | 4,069.32 mi (6,548.94 km) |
| Potomac to Belm | 3,975.26 mi (6,397.56 km) |
| Potomac to Belzig | 4,151.21 mi (6,680.73 km) |
| Potomac to Bendorf | 4,005.08 mi (6,445.55 km) |
| Potomac to Bensheim | 4,069.26 mi (6,548.84 km) |
| Potomac to Berching | 4,200.22 mi (6,759.61 km) |
| Potomac to Bergen | 4,031.26 mi (6,487.68 km) |
| Potomac to Bergen | 4,113.47 mi (6,620.00 km) |
| Potomac to Bergheim | 3,953.29 mi (6,362.21 km) |
| Potomac to Bergisch Gladbach | 3,971.78 mi (6,391.97 km) |
| Potomac to Bergkamen | 3,974.50 mi (6,396.33 km) |
| Potomac to Bergneustadt | 3,991.32 mi (6,423.41 km) |
| Potomac to Berlin | 4,170.18 mi (6,711.25 km) |
