| Frondenberg to Orzesze | 487.69 mi (784.85 km) |
| Frondenberg to Osowa | 489.54 mi (787.84 km) |
| Frondenberg to Ostroda | 534.04 mi (859.46 km) |
| Frondenberg to Ostroleka | 592.86 mi (954.11 km) |
| Frondenberg to Ostrow Mazowiecka | 605.38 mi (974.27 km) |
| Frondenberg to Ostrow Wielkopolski | 431.55 mi (694.51 km) |
| Frondenberg to Ostrowiec Swietokrzyski | 590.56 mi (950.42 km) |
| Frondenberg to Ostrzeszow | 437.52 mi (704.12 km) |
| Frondenberg to Oswiecim | 509.88 mi (820.57 km) |
| Frondenberg to Otwock | 577.81 mi (929.90 km) |
| Frondenberg to Ozarow Mazowiecki | 557.99 mi (898.00 km) |
| Frondenberg to Ozimek | 456.50 mi (734.67 km) |
| Frondenberg to Ozorkow | 493.66 mi (794.47 km) |
| Frondenberg to Pabianice | 498.64 mi (802.49 km) |
| Frondenberg to Parczew | 647.70 mi (1,042.38 km) |
