| Ostrow Mazowiecka to Slobozia | 620.85 mi (999.16 km) |
| Ostrow Mazowiecka to Sovata | 451.40 mi (726.46 km) |
| Ostrow Mazowiecka to Strehaia | 568.09 mi (914.26 km) |
| Ostrow Mazowiecka to Suceava | 404.32 mi (650.68 km) |
| Ostrow Mazowiecka to Targoviste | 567.48 mi (913.27 km) |
| Ostrow Mazowiecka to Targu Frumos | 447.79 mi (720.64 km) |
| Ostrow Mazowiecka to Targu Jiu | 540.16 mi (869.30 km) |
| Ostrow Mazowiecka to Targu Lapus | 379.53 mi (610.80 km) |
| Ostrow Mazowiecka to Targu Neamt | 434.29 mi (698.92 km) |
| Ostrow Mazowiecka to Targu Ocna | 497.46 mi (800.58 km) |
| Ostrow Mazowiecka to Targu Secuiesc | 507.03 mi (815.98 km) |
| Ostrow Mazowiecka to Targu-Mures | 448.15 mi (721.23 km) |
| Ostrow Mazowiecka to Tarnaveni | 459.43 mi (739.38 km) |
| Ostrow Mazowiecka to Tasnad | 369.01 mi (593.86 km) |
| Ostrow Mazowiecka to Tecuci | 540.71 mi (870.19 km) |
