| Potomac to Beuvry | 3,804.16 mi (6,122.21 km) |
| Potomac to Beziers | 4,024.70 mi (6,477.13 km) |
| Potomac to Bezons | 3,825.25 mi (6,156.14 km) |
| Potomac to Biarritz | 3,802.67 mi (6,119.80 km) |
| Potomac to Biganos | 3,797.72 mi (6,111.85 km) |
| Potomac to Billere | 3,861.07 mi (6,213.79 km) |
| Potomac to Biot | 4,189.76 mi (6,742.77 km) |
| Potomac to Biscarrosse | 3,796.04 mi (6,109.14 km) |
| Potomac to Bischheim | 4,064.86 mi (6,541.77 km) |
| Potomac to Bischwiller | 4,064.71 mi (6,541.51 km) |
| Potomac to Blagnac | 3,933.27 mi (6,329.99 km) |
| Potomac to Blain | 3,690.43 mi (5,939.17 km) |
| Potomac to Blanquefort | 3,805.98 mi (6,125.14 km) |
| Potomac to Blois | 3,821.79 mi (6,150.57 km) |
| Potomac to Bobigny | 3,834.99 mi (6,171.83 km) |
