| Herk-de-Stad to Orzesze | 598.01 mi (962.41 km) |
| Herk-de-Stad to Osowa | 605.85 mi (975.03 km) |
| Herk-de-Stad to Ostroda | 652.07 mi (1,049.40 km) |
| Herk-de-Stad to Ostroleka | 711.16 mi (1,144.51 km) |
| Herk-de-Stad to Ostrow Mazowiecka | 723.58 mi (1,164.49 km) |
| Herk-de-Stad to Ostrow Wielkopolski | 548.00 mi (881.92 km) |
| Herk-de-Stad to Ostrowiec Swietokrzyski | 705.36 mi (1,135.17 km) |
| Herk-de-Stad to Ostrzeszow | 553.23 mi (890.33 km) |
| Herk-de-Stad to Oswiecim | 619.99 mi (997.78 km) |
| Herk-de-Stad to Otwock | 695.33 mi (1,119.02 km) |
| Herk-de-Stad to Ozarow Mazowiecki | 675.65 mi (1,087.35 km) |
| Herk-de-Stad to Ozimek | 569.17 mi (916.00 km) |
| Herk-de-Stad to Ozorkow | 610.91 mi (983.17 km) |
| Herk-de-Stad to Pabianice | 615.17 mi (990.02 km) |
| Herk-de-Stad to Parczew | 764.45 mi (1,230.27 km) |
