| Castelli Calepio to Orzesze | 514.70 mi (828.32 km) |
| Castelli Calepio to Osowa | 715.70 mi (1,151.81 km) |
| Castelli Calepio to Ostroda | 715.03 mi (1,150.73 km) |
| Castelli Calepio to Ostroleka | 732.82 mi (1,179.35 km) |
| Castelli Calepio to Ostrow Mazowiecka | 732.10 mi (1,178.19 km) |
| Castelli Calepio to Ostrow Wielkopolski | 550.19 mi (885.44 km) |
| Castelli Calepio to Ostrowiec Swietokrzyski | 642.03 mi (1,033.24 km) |
| Castelli Calepio to Ostrzeszow | 542.34 mi (872.81 km) |
| Castelli Calepio to Oswiecim | 528.08 mi (849.87 km) |
| Castelli Calepio to Otwock | 682.33 mi (1,098.11 km) |
| Castelli Calepio to Ozarow Mazowiecki | 670.83 mi (1,079.59 km) |
| Castelli Calepio to Ozimek | 517.20 mi (832.36 km) |
| Castelli Calepio to Ozorkow | 610.50 mi (982.51 km) |
| Castelli Calepio to Pabianice | 599.32 mi (964.52 km) |
| Castelli Calepio to Parczew | 721.13 mi (1,160.54 km) |
