| Idar-Oberstein to Bitritto | 754.78 mi (1,214.70 km) |
| Idar-Oberstein to Bollate | 299.51 mi (482.02 km) |
| Idar-Oberstein to Bologna | 407.13 mi (655.21 km) |
| Idar-Oberstein to Bolzano | 289.85 mi (466.47 km) |
| Idar-Oberstein to Bomporto | 385.60 mi (620.56 km) |
| Idar-Oberstein to Bonate di Sopra | 297.36 mi (478.55 km) |
| Idar-Oberstein to Bondeno | 384.90 mi (619.44 km) |
| Idar-Oberstein to Bordighera | 409.93 mi (659.72 km) |
| Idar-Oberstein to Borgaro Torinese | 315.55 mi (507.84 km) |
| Idar-Oberstein to Borgo a Buggiano | 433.84 mi (698.21 km) |
| Idar-Oberstein to Borgo San Dalmazzo | 371.68 mi (598.16 km) |
| Idar-Oberstein to Borgo San Lorenzo | 441.97 mi (711.28 km) |
| Idar-Oberstein to Borgomanero | 282.29 mi (454.31 km) |
| Idar-Oberstein to Borgoricco | 361.76 mi (582.20 km) |
| Idar-Oberstein to Borgosatollo | 322.79 mi (519.47 km) |
