| Idar-Oberstein to Bingol | 1,784.63 mi (2,872.09 km) |
| Idar-Oberstein to Birecik | 1,754.37 mi (2,823.38 km) |
| Idar-Oberstein to Bitlis | 1,874.59 mi (3,016.85 km) |
| Idar-Oberstein to Bodrum | 1,329.15 mi (2,139.06 km) |
| Idar-Oberstein to Bogazliyan | 1,544.95 mi (2,486.36 km) |
| Idar-Oberstein to Bolu | 1,326.78 mi (2,135.25 km) |
| Idar-Oberstein to Bolvadin | 1,390.29 mi (2,237.46 km) |
| Idar-Oberstein to Bor | 1,572.80 mi (2,531.18 km) |
| Idar-Oberstein to Borcka | 1,742.42 mi (2,804.15 km) |
| Idar-Oberstein to Boyabat | 1,434.35 mi (2,308.36 km) |
| Idar-Oberstein to Bozdogan | 1,330.86 mi (2,141.81 km) |
| Idar-Oberstein to Bozkir | 1,509.27 mi (2,428.93 km) |
| Idar-Oberstein to Bozkurt | 1,374.69 mi (2,212.35 km) |
| Idar-Oberstein to Bozuyuk | 1,295.93 mi (2,085.59 km) |
| Idar-Oberstein to Bucak | 1,430.44 mi (2,302.08 km) |
