| Idar-Oberstein to Blace | 796.99 mi (1,282.64 km) |
| Idar-Oberstein to Bogatic | 661.49 mi (1,064.57 km) |
| Idar-Oberstein to Bojnik | 825.98 mi (1,329.29 km) |
| Idar-Oberstein to Boljevac | 801.34 mi (1,289.63 km) |
| Idar-Oberstein to Bor | 795.44 mi (1,280.14 km) |
| Idar-Oberstein to Borca | 699.29 mi (1,125.40 km) |
| Idar-Oberstein to Bosilegrad | 878.10 mi (1,413.17 km) |
| Idar-Oberstein to Brus | 783.13 mi (1,260.32 km) |
| Idar-Oberstein to Bujanovac | 852.19 mi (1,371.46 km) |
| Idar-Oberstein to Cacak | 734.55 mi (1,182.15 km) |
| Idar-Oberstein to Cajetina | 715.98 mi (1,152.26 km) |
| Idar-Oberstein to Cicevac | 785.54 mi (1,264.20 km) |
| Idar-Oberstein to Coka | 649.13 mi (1,044.68 km) |
| Idar-Oberstein to Crna Trava | 857.71 mi (1,380.35 km) |
| Idar-Oberstein to Crvenka | 629.41 mi (1,012.93 km) |
