| Ostrow Mazowiecka to Belvedere Marittimo | 954.63 mi (1,536.32 km) |
| Ostrow Mazowiecka to Benevento | 872.11 mi (1,403.52 km) |
| Ostrow Mazowiecka to Bergamo | 736.64 mi (1,185.51 km) |
| Ostrow Mazowiecka to Bernalda | 890.11 mi (1,432.50 km) |
| Ostrow Mazowiecka to Bertinoro | 745.13 mi (1,199.17 km) |
| Ostrow Mazowiecka to Besana in Brianza | 749.40 mi (1,206.05 km) |
| Ostrow Mazowiecka to Besozzo | 763.29 mi (1,228.40 km) |
| Ostrow Mazowiecka to Biancavilla | 1,100.01 mi (1,770.29 km) |
| Ostrow Mazowiecka to Biassono | 753.25 mi (1,212.25 km) |
| Ostrow Mazowiecka to Bibbiano | 764.54 mi (1,230.41 km) |
| Ostrow Mazowiecka to Bibbiena | 779.79 mi (1,254.95 km) |
| Ostrow Mazowiecka to Biella | 797.74 mi (1,283.83 km) |
| Ostrow Mazowiecka to Bisceglie | 837.36 mi (1,347.60 km) |
| Ostrow Mazowiecka to Bisignano | 955.60 mi (1,537.90 km) |
| Ostrow Mazowiecka to Bitetto | 848.00 mi (1,364.72 km) |
