| Civitavecchia to Orzesze | 647.52 mi (1,042.08 km) |
| Civitavecchia to Osowa | 904.32 mi (1,455.35 km) |
| Civitavecchia to Ostroda | 884.91 mi (1,424.12 km) |
| Civitavecchia to Ostroleka | 882.13 mi (1,419.64 km) |
| Civitavecchia to Ostrow Mazowiecka | 875.21 mi (1,408.51 km) |
| Civitavecchia to Ostrow Wielkopolski | 717.79 mi (1,155.17 km) |
| Civitavecchia to Ostrowiec Swietokrzyski | 760.78 mi (1,224.36 km) |
| Civitavecchia to Ostrzeszow | 705.55 mi (1,135.47 km) |
| Civitavecchia to Oswiecim | 653.02 mi (1,050.93 km) |
| Civitavecchia to Otwock | 821.38 mi (1,321.88 km) |
| Civitavecchia to Ozarow Mazowiecki | 815.54 mi (1,312.48 km) |
| Civitavecchia to Ozimek | 665.95 mi (1,071.74 km) |
| Civitavecchia to Ozorkow | 766.47 mi (1,233.51 km) |
| Civitavecchia to Pabianice | 749.84 mi (1,206.75 km) |
| Civitavecchia to Parczew | 839.00 mi (1,350.24 km) |
