| Efkarpia to Orzesze | 684.78 mi (1,102.05 km) |
| Efkarpia to Osowa | 971.81 mi (1,563.97 km) |
| Efkarpia to Ostroda | 910.00 mi (1,464.50 km) |
| Efkarpia to Ostroleka | 858.06 mi (1,380.91 km) |
| Efkarpia to Ostrow Mazowiecka | 838.63 mi (1,349.65 km) |
| Efkarpia to Ostrow Wielkopolski | 796.00 mi (1,281.05 km) |
| Efkarpia to Ostrowiec Swietokrzyski | 712.09 mi (1,145.99 km) |
| Efkarpia to Ostrzeszow | 779.18 mi (1,253.96 km) |
| Efkarpia to Oswiecim | 671.00 mi (1,079.87 km) |
| Efkarpia to Otwock | 793.97 mi (1,277.78 km) |
| Efkarpia to Ozarow Mazowiecki | 803.33 mi (1,292.84 km) |
| Efkarpia to Ozimek | 726.73 mi (1,169.56 km) |
| Efkarpia to Ozorkow | 798.73 mi (1,285.43 km) |
| Efkarpia to Pabianice | 776.46 mi (1,249.59 km) |
| Efkarpia to Parczew | 756.58 mi (1,217.60 km) |
