| Simmerath to Orzesze | 548.85 mi (883.30 km) |
| Simmerath to Osowa | 575.00 mi (925.37 km) |
| Simmerath to Ostroda | 616.54 mi (992.22 km) |
| Simmerath to Ostroleka | 672.32 mi (1,081.99 km) |
| Simmerath to Ostrow Mazowiecka | 683.65 mi (1,100.22 km) |
| Simmerath to Ostrow Wielkopolski | 504.11 mi (811.29 km) |
| Simmerath to Ostrowiec Swietokrzyski | 659.13 mi (1,060.77 km) |
| Simmerath to Ostrzeszow | 508.35 mi (818.11 km) |
| Simmerath to Oswiecim | 570.66 mi (918.39 km) |
| Simmerath to Otwock | 652.99 mi (1,050.88 km) |
| Simmerath to Ozarow Mazowiecki | 633.72 mi (1,019.87 km) |
| Simmerath to Ozimek | 521.53 mi (839.31 km) |
| Simmerath to Ozorkow | 568.19 mi (914.41 km) |
| Simmerath to Pabianice | 571.20 mi (919.25 km) |
| Simmerath to Parczew | 720.52 mi (1,159.57 km) |
