| Calafell to Opole | 1,018.85 mi (1,639.68 km) |
| Calafell to Orzesze | 1,030.48 mi (1,658.39 km) |
| Calafell to Osowa | 1,197.91 mi (1,927.85 km) |
| Calafell to Ostroda | 1,211.57 mi (1,949.84 km) |
| Calafell to Ostroleka | 1,239.64 mi (1,995.01 km) |
| Calafell to Ostrow Mazowiecka | 1,241.36 mi (1,997.78 km) |
| Calafell to Ostrow Wielkopolski | 1,053.89 mi (1,696.08 km) |
| Calafell to Ostrowiec Swietokrzyski | 1,158.47 mi (1,864.38 km) |
| Calafell to Ostrzeszow | 1,048.40 mi (1,687.24 km) |
| Calafell to Oswiecim | 1,044.81 mi (1,681.47 km) |
| Calafell to Otwock | 1,193.86 mi (1,921.33 km) |
| Calafell to Ozarow Mazowiecki | 1,180.73 mi (1,900.20 km) |
| Calafell to Ozimek | 1,029.33 mi (1,656.54 km) |
| Calafell to Ozorkow | 1,117.55 mi (1,798.52 km) |
| Calafell to Pabianice | 1,108.79 mi (1,784.42 km) |
