| Ostrow Mazowiecka to Bahcesaray | 1,423.09 mi (2,290.24 km) |
| Ostrow Mazowiecka to Balikesir | 952.81 mi (1,533.41 km) |
| Ostrow Mazowiecka to Balya | 940.89 mi (1,514.22 km) |
| Ostrow Mazowiecka to Banaz | 1,041.47 mi (1,676.08 km) |
| Ostrow Mazowiecka to Bandirma | 906.38 mi (1,458.67 km) |
| Ostrow Mazowiecka to Bartin | 911.76 mi (1,467.34 km) |
| Ostrow Mazowiecka to Baskale | 1,468.25 mi (2,362.91 km) |
| Ostrow Mazowiecka to Baskil | 1,271.70 mi (2,046.60 km) |
| Ostrow Mazowiecka to Basmakci | 1,101.48 mi (1,772.66 km) |
| Ostrow Mazowiecka to Batman | 1,381.91 mi (2,223.98 km) |
| Ostrow Mazowiecka to Battalgazi | 1,266.53 mi (2,038.29 km) |
| Ostrow Mazowiecka to Bayat | 1,020.60 mi (1,642.50 km) |
| Ostrow Mazowiecka to Bayburt | 1,221.94 mi (1,966.53 km) |
| Ostrow Mazowiecka to Bayindir | 1,044.33 mi (1,680.69 km) |
| Ostrow Mazowiecka to Baykan | 1,387.46 mi (2,232.90 km) |
