| Ostrov to Orzesze | 257.01 mi (413.61 km) |
| Ostrov to Osowa | 367.93 mi (592.13 km) |
| Ostrov to Ostroda | 379.63 mi (610.95 km) |
| Ostrov to Ostroleka | 415.51 mi (668.70 km) |
| Ostrov to Ostrow Mazowiecka | 421.40 mi (678.17 km) |
| Ostrov to Ostrow Wielkopolski | 231.53 mi (372.61 km) |
| Ostrov to Ostrowiec Swietokrzyski | 373.21 mi (600.63 km) |
| Ostrov to Ostrzeszow | 230.87 mi (371.55 km) |
| Ostrov to Oswiecim | 278.54 mi (448.27 km) |
| Ostrov to Otwock | 381.28 mi (613.60 km) |
| Ostrov to Ozarow Mazowiecki | 364.38 mi (586.41 km) |
| Ostrov to Ozimek | 233.17 mi (375.24 km) |
| Ostrov to Ozorkow | 297.89 mi (479.40 km) |
| Ostrov to Pabianice | 295.20 mi (475.07 km) |
| Ostrov to Parczew | 441.20 mi (710.05 km) |
