| Iserlohn to Orzesze | 491.28 mi (790.64 km) |
| Iserlohn to Osowa | 496.25 mi (798.64 km) |
| Iserlohn to Ostroda | 540.28 mi (869.50 km) |
| Iserlohn to Ostroleka | 598.68 mi (963.48 km) |
| Iserlohn to Ostrow Mazowiecka | 611.05 mi (983.39 km) |
| Iserlohn to Ostrow Wielkopolski | 436.43 mi (702.37 km) |
| Iserlohn to Ostrowiec Swietokrzyski | 595.05 mi (957.64 km) |
| Iserlohn to Ostrzeszow | 442.20 mi (711.64 km) |
| Iserlohn to Oswiecim | 513.45 mi (826.32 km) |
| Iserlohn to Otwock | 583.08 mi (938.38 km) |
| Iserlohn to Ozarow Mazowiecki | 563.32 mi (906.58 km) |
| Iserlohn to Ozimek | 460.51 mi (741.12 km) |
| Iserlohn to Ozorkow | 498.82 mi (802.77 km) |
| Iserlohn to Pabianice | 503.56 mi (810.40 km) |
| Iserlohn to Parczew | 652.71 mi (1,050.43 km) |
