| Boulogne-sur-Mer to Arth | 402.86 mi (648.34 km) |
| Boulogne-sur-Mer to Baar | 396.45 mi (638.02 km) |
| Boulogne-sur-Mer to Baden | 376.86 mi (606.49 km) |
| Boulogne-sur-Mer to Basel | 347.64 mi (559.48 km) |
| Boulogne-sur-Mer to Bassersdorf | 389.85 mi (627.40 km) |
| Boulogne-sur-Mer to Bellinzona | 461.57 mi (742.83 km) |
| Boulogne-sur-Mer to Belp | 376.42 mi (605.79 km) |
| Boulogne-sur-Mer to Bern | 371.96 mi (598.61 km) |
| Boulogne-sur-Mer to Bernex | 374.54 mi (602.77 km) |
| Boulogne-sur-Mer to Biberist | 364.03 mi (585.86 km) |
| Boulogne-sur-Mer to Biel/Bienne | 356.28 mi (573.37 km) |
| Boulogne-sur-Mer to Binningen | 347.79 mi (559.71 km) |
| Boulogne-sur-Mer to Birsfelden | 348.85 mi (561.43 km) |
| Boulogne-sur-Mer to Brig-Glis | 420.81 mi (677.22 km) |
| Boulogne-sur-Mer to Brugg | 372.62 mi (599.68 km) |
