| Ostrow Mazowiecka to Floresti | 424.14 mi (682.59 km) |
| Ostrow Mazowiecka to Focsani | 544.94 mi (877.00 km) |
| Ostrow Mazowiecka to Gaesti | 579.46 mi (932.55 km) |
| Ostrow Mazowiecka to Galati | 579.98 mi (933.39 km) |
| Ostrow Mazowiecka to Gheorgheni | 451.07 mi (725.92 km) |
| Ostrow Mazowiecka to Gherla | 409.11 mi (658.40 km) |
| Ostrow Mazowiecka to Giurgiu | 642.43 mi (1,033.89 km) |
| Ostrow Mazowiecka to Gura Humorului | 403.01 mi (648.59 km) |
| Ostrow Mazowiecka to Harlau | 432.28 mi (695.69 km) |
| Ostrow Mazowiecka to Harsova | 624.40 mi (1,004.88 km) |
| Ostrow Mazowiecka to Hateg | 499.19 mi (803.38 km) |
| Ostrow Mazowiecka to Huedin | 412.79 mi (664.32 km) |
| Ostrow Mazowiecka to Hunedoara | 487.90 mi (785.21 km) |
| Ostrow Mazowiecka to Husi | 504.36 mi (811.70 km) |
| Ostrow Mazowiecka to Ianca | 586.44 mi (943.79 km) |
