| Ostrow Mazowiecka to Blumberg | 680.49 mi (1,095.15 km) |
| Ostrow Mazowiecka to Bobenheim-Roxheim | 625.78 mi (1,007.09 km) |
| Ostrow Mazowiecka to Bobingen | 577.86 mi (929.98 km) |
| Ostrow Mazowiecka to Boblingen | 629.78 mi (1,013.54 km) |
| Ostrow Mazowiecka to Bocholt | 647.72 mi (1,042.40 km) |
| Ostrow Mazowiecka to Bochum | 628.16 mi (1,010.93 km) |
| Ostrow Mazowiecka to Bockenem | 498.45 mi (802.18 km) |
| Ostrow Mazowiecka to Bockhorn | 576.52 mi (927.82 km) |
| Ostrow Mazowiecka to Bogen | 482.73 mi (776.88 km) |
| Ostrow Mazowiecka to Bohl-Iggelheim | 634.44 mi (1,021.03 km) |
| Ostrow Mazowiecka to Bohmte | 570.18 mi (917.62 km) |
| Ostrow Mazowiecka to Boizenburg | 465.29 mi (748.81 km) |
| Ostrow Mazowiecka to Bonen | 603.56 mi (971.34 km) |
| Ostrow Mazowiecka to Bonn | 647.49 mi (1,042.04 km) |
| Ostrow Mazowiecka to Bopfingen | 571.96 mi (920.49 km) |
