| Idrija to Brandenburg | 448.25 mi (721.40 km) |
| Idrija to Brandis | 374.04 mi (601.96 km) |
| Idrija to Braunfels | 405.58 mi (652.71 km) |
| Idrija to Braunsbedra | 377.53 mi (607.58 km) |
| Idrija to Braunschweig | 460.85 mi (741.67 km) |
| Idrija to Breckerfeld | 470.82 mi (757.72 km) |
| Idrija to Breisach am Rhein | 334.28 mi (537.97 km) |
| Idrija to Bremen | 542.12 mi (872.46 km) |
| Idrija to Bremerhaven | 574.87 mi (925.17 km) |
| Idrija to Bremervorde | 560.84 mi (902.58 km) |
| Idrija to Bretten | 324.82 mi (522.74 km) |
| Idrija to Bretzfeld | 306.69 mi (493.57 km) |
| Idrija to Brieselang | 457.03 mi (735.51 km) |
| Idrija to Brilon | 447.87 mi (720.78 km) |
| Idrija to Bruchhausen-Vilsen | 522.96 mi (841.62 km) |
