| Potomac to Brescia | 4,264.14 mi (6,862.47 km) |
| Potomac to Bressanone | 4,286.18 mi (6,897.94 km) |
| Potomac to Bresso | 4,219.97 mi (6,791.38 km) |
| Potomac to Brindisi | 4,772.19 mi (7,680.09 km) |
| Potomac to Broni | 4,238.49 mi (6,821.19 km) |
| Potomac to Bronte | 4,743.70 mi (7,634.24 km) |
| Potomac to Brugherio | 4,224.45 mi (6,798.60 km) |
| Potomac to Brugnera | 4,349.99 mi (7,000.64 km) |
| Potomac to Bruino | 4,162.18 mi (6,698.38 km) |
| Potomac to Brunico | 4,295.10 mi (6,912.30 km) |
| Potomac to Brusciano | 4,607.43 mi (7,414.94 km) |
| Potomac to Bucine | 4,393.20 mi (7,070.17 km) |
| Potomac to Budrio | 4,353.20 mi (7,005.80 km) |
| Potomac to Busca | 4,177.92 mi (6,723.71 km) |
| Potomac to Bussolengo | 4,293.34 mi (6,909.46 km) |
