| Boulogne-sur-Mer to Brandis | 479.12 mi (771.08 km) |
| Boulogne-sur-Mer to Braunfels | 296.95 mi (477.90 km) |
| Boulogne-sur-Mer to Braunsbedra | 448.46 mi (721.72 km) |
| Boulogne-sur-Mer to Braunschweig | 397.14 mi (639.14 km) |
| Boulogne-sur-Mer to Breckerfeld | 257.13 mi (413.81 km) |
| Boulogne-sur-Mer to Breisach am Rhein | 326.50 mi (525.45 km) |
| Boulogne-sur-Mer to Bremen | 346.67 mi (557.92 km) |
| Boulogne-sur-Mer to Bremerhaven | 353.86 mi (569.48 km) |
| Boulogne-sur-Mer to Bremervorde | 371.33 mi (597.60 km) |
| Boulogne-sur-Mer to Bretten | 336.46 mi (541.47 km) |
| Boulogne-sur-Mer to Bretzfeld | 363.35 mi (584.75 km) |
| Boulogne-sur-Mer to Brieselang | 504.02 mi (811.14 km) |
| Boulogne-sur-Mer to Brilon | 305.34 mi (491.39 km) |
| Boulogne-sur-Mer to Bruchhausen-Vilsen | 347.43 mi (559.13 km) |
| Boulogne-sur-Mer to Bruchkobel | 323.27 mi (520.25 km) |
