| Idar-Oberstein to Blumberg | 140.79 mi (226.59 km) |
| Idar-Oberstein to Bobenheim-Roxheim | 47.70 mi (76.77 km) |
| Idar-Oberstein to Bobingen | 187.58 mi (301.88 km) |
| Idar-Oberstein to Boblingen | 104.54 mi (168.24 km) |
| Idar-Oberstein to Bocholt | 149.73 mi (240.97 km) |
| Idar-Oberstein to Bochum | 122.40 mi (196.99 km) |
| Idar-Oberstein to Bockenem | 200.90 mi (323.31 km) |
| Idar-Oberstein to Bockhorn | 256.64 mi (413.02 km) |
| Idar-Oberstein to Bogen | 247.98 mi (399.09 km) |
| Idar-Oberstein to Bohl-Iggelheim | 50.44 mi (81.17 km) |
| Idar-Oberstein to Bohmte | 188.57 mi (303.47 km) |
| Idar-Oberstein to Boizenburg | 291.78 mi (469.57 km) |
| Idar-Oberstein to Bonen | 131.85 mi (212.19 km) |
| Idar-Oberstein to Bonn | 71.23 mi (114.64 km) |
| Idar-Oberstein to Bopfingen | 149.14 mi (240.02 km) |
