| Potomac to Beausoleil | 4,200.67 mi (6,760.33 km) |
| Potomac to Beauvais | 3,807.26 mi (6,127.19 km) |
| Potomac to Begles | 3,812.77 mi (6,136.07 km) |
| Potomac to Belfort | 4,055.94 mi (6,527.41 km) |
| Potomac to Bellegarde-sur-Valserine | 4,057.65 mi (6,530.15 km) |
| Potomac to Bellerive-sur-Allier | 3,952.16 mi (6,360.39 km) |
| Potomac to Bellevue | 3,833.71 mi (6,169.77 km) |
| Potomac to Belley | 4,062.08 mi (6,537.28 km) |
| Potomac to Berck-sur-Mer | 3,762.21 mi (6,054.69 km) |
| Potomac to Bergerac | 3,857.94 mi (6,208.75 km) |
| Potomac to Bernay | 3,752.78 mi (6,039.52 km) |
| Potomac to Berre-l'Etang | 4,108.61 mi (6,612.16 km) |
| Potomac to Besancon | 4,032.57 mi (6,489.79 km) |
| Potomac to Bethune | 3,802.32 mi (6,119.24 km) |
| Potomac to Betton | 3,678.70 mi (5,920.29 km) |
