| Calella to Opole | 958.61 mi (1,542.73 km) |
| Calella to Orzesze | 969.29 mi (1,559.92 km) |
| Calella to Osowa | 1,142.21 mi (1,838.20 km) |
| Calella to Ostroda | 1,153.94 mi (1,857.08 km) |
| Calella to Ostroleka | 1,180.42 mi (1,899.70 km) |
| Calella to Ostrow Mazowiecka | 1,181.70 mi (1,901.77 km) |
| Calella to Ostrow Wielkopolski | 994.95 mi (1,601.22 km) |
| Calella to Ostrowiec Swietokrzyski | 1,097.12 mi (1,765.64 km) |
| Calella to Ostrzeszow | 989.09 mi (1,591.78 km) |
| Calella to Oswiecim | 983.33 mi (1,582.52 km) |
| Calella to Otwock | 1,133.73 mi (1,824.56 km) |
| Calella to Ozarow Mazowiecki | 1,120.91 mi (1,803.92 km) |
| Calella to Ozimek | 968.96 mi (1,559.39 km) |
| Calella to Ozorkow | 1,058.16 mi (1,702.95 km) |
| Calella to Pabianice | 1,048.98 mi (1,688.17 km) |
