| Boulogne-sur-Mer to Bois-Colombes | 128.33 mi (206.53 km) |
| Boulogne-sur-Mer to Bois-d'Arcy | 134.30 mi (216.13 km) |
| Boulogne-sur-Mer to Bois-Guillaume | 89.54 mi (144.10 km) |
| Boulogne-sur-Mer to Boissy-Saint-Leger | 142.26 mi (228.95 km) |
| Boulogne-sur-Mer to Bolbec | 94.43 mi (151.97 km) |
| Boulogne-sur-Mer to Bollene | 468.68 mi (754.27 km) |
| Boulogne-sur-Mer to Bondoufle | 149.96 mi (241.34 km) |
| Boulogne-sur-Mer to Bondues | 64.71 mi (104.14 km) |
| Boulogne-sur-Mer to Bondy | 131.85 mi (212.19 km) |
| Boulogne-sur-Mer to Bonneuil-sur-Marne | 140.40 mi (225.95 km) |
| Boulogne-sur-Mer to Bonneville | 388.80 mi (625.72 km) |
| Boulogne-sur-Mer to Bordeaux | 419.23 mi (674.68 km) |
| Boulogne-sur-Mer to Borgo | 674.59 mi (1,085.66 km) |
| Boulogne-sur-Mer to Bouc-Bel-Air | 533.11 mi (857.95 km) |
| Boulogne-sur-Mer to Boucau | 518.46 mi (834.38 km) |
