| Potomac to Bois-Colombes | 3,827.60 mi (6,159.92 km) |
| Potomac to Bois-d'Arcy | 3,820.60 mi (6,148.66 km) |
| Potomac to Bois-Guillaume | 3,765.38 mi (6,059.80 km) |
| Potomac to Boissy-Saint-Leger | 3,842.10 mi (6,183.27 km) |
| Potomac to Bolbec | 3,735.74 mi (6,012.09 km) |
| Potomac to Bollene | 4,065.26 mi (6,542.41 km) |
| Potomac to Bondoufle | 3,840.21 mi (6,180.22 km) |
| Potomac to Bondues | 3,816.55 mi (6,142.14 km) |
| Potomac to Bondy | 3,837.03 mi (6,175.10 km) |
| Potomac to Bonneuil-sur-Marne | 3,840.54 mi (6,180.76 km) |
| Potomac to Bonneville | 4,083.33 mi (6,571.49 km) |
| Potomac to Bordeaux | 3,810.47 mi (6,132.37 km) |
| Potomac to Borgo | 4,328.56 mi (6,966.14 km) |
| Potomac to Bouc-Bel-Air | 4,120.30 mi (6,630.98 km) |
| Potomac to Boucau | 3,804.85 mi (6,123.32 km) |
