| Ostrow Mazowiecka to Vrsac | 531.55 mi (855.45 km) |
| Ostrow Mazowiecka to Zabalj | 520.20 mi (837.18 km) |
| Ostrow Mazowiecka to Zabari | 584.24 mi (940.25 km) |
| Ostrow Mazowiecka to Zagubica | 594.37 mi (956.54 km) |
| Ostrow Mazowiecka to Zajecar | 614.89 mi (989.57 km) |
| Ostrow Mazowiecka to Zemun | 553.48 mi (890.74 km) |
| Ostrow Mazowiecka to Zitiste | 509.18 mi (819.44 km) |
| Ostrow Mazowiecka to Zitorada | 664.50 mi (1,069.41 km) |
| Ostrow Mazowiecka to Zrenjanin | 516.95 mi (831.95 km) |
| Ostrow Mazowiecka to Banovce nad Bebravou | 323.72 mi (520.98 km) |
| Ostrow Mazowiecka to Banska Bystrica | 305.50 mi (491.65 km) |
| Ostrow Mazowiecka to Banska Stiavnica | 327.54 mi (527.12 km) |
| Ostrow Mazowiecka to Bardejov | 243.80 mi (392.35 km) |
| Ostrow Mazowiecka to Bernolakovo | 376.54 mi (605.99 km) |
| Ostrow Mazowiecka to Bratislava | 384.35 mi (618.54 km) |
