| Castelginest to Orzesze | 927.89 mi (1,493.29 km) |
| Castelginest to Osowa | 1,064.82 mi (1,713.66 km) |
| Castelginest to Ostroda | 1,086.28 mi (1,748.21 km) |
| Castelginest to Ostroleka | 1,122.07 mi (1,805.80 km) |
| Castelginest to Ostrow Mazowiecka | 1,126.30 mi (1,812.60 km) |
| Castelginest to Ostrow Wielkopolski | 936.34 mi (1,506.89 km) |
| Castelginest to Ostrowiec Swietokrzyski | 1,055.95 mi (1,699.39 km) |
| Castelginest to Ostrzeszow | 932.95 mi (1,501.44 km) |
| Castelginest to Oswiecim | 944.51 mi (1,520.04 km) |
| Castelginest to Otwock | 1,082.07 mi (1,741.42 km) |
| Castelginest to Ozarow Mazowiecki | 1,067.12 mi (1,717.36 km) |
| Castelginest to Ozimek | 920.68 mi (1,481.69 km) |
| Castelginest to Ozorkow | 1,001.85 mi (1,612.32 km) |
| Castelginest to Pabianice | 995.69 mi (1,602.41 km) |
| Castelginest to Parczew | 1,132.26 mi (1,822.20 km) |
