| Potomac to Barmstedt | 3,996.66 mi (6,432.00 km) |
| Potomac to Barntrup | 4,022.25 mi (6,473.18 km) |
| Potomac to Barsbuttel | 4,017.67 mi (6,465.82 km) |
| Potomac to Barsinghausen | 4,027.36 mi (6,481.41 km) |
| Potomac to Barssel | 3,936.87 mi (6,335.78 km) |
| Potomac to Barth | 4,088.92 mi (6,580.49 km) |
| Potomac to Bassum | 3,983.04 mi (6,410.08 km) |
| Potomac to Baunatal | 4,054.76 mi (6,525.51 km) |
| Potomac to Bautzen | 4,251.23 mi (6,841.69 km) |
| Potomac to Bayreuth | 4,179.45 mi (6,726.17 km) |
| Potomac to Bebra | 4,077.79 mi (6,562.56 km) |
| Potomac to Beckingen | 3,999.09 mi (6,435.91 km) |
| Potomac to Beckum | 3,986.66 mi (6,415.91 km) |
| Potomac to Bedburg | 3,913.27 mi (6,297.80 km) |
| Potomac to Bedburg | 3,948.89 mi (6,355.12 km) |
