| Mechernich to Orzesze | 533.50 mi (858.58 km) |
| Mechernich to Osowa | 562.02 mi (904.48 km) |
| Mechernich to Ostroda | 602.71 mi (969.96 km) |
| Mechernich to Ostroleka | 657.94 mi (1,058.86 km) |
| Mechernich to Ostrow Mazowiecka | 669.12 mi (1,076.84 km) |
| Mechernich to Ostrow Wielkopolski | 489.13 mi (787.18 km) |
| Mechernich to Ostrowiec Swietokrzyski | 643.91 mi (1,036.28 km) |
| Mechernich to Ostrzeszow | 493.27 mi (793.83 km) |
| Mechernich to Oswiecim | 555.30 mi (893.67 km) |
| Mechernich to Otwock | 638.15 mi (1,027.01 km) |
| Mechernich to Ozarow Mazowiecki | 618.94 mi (996.08 km) |
| Mechernich to Ozimek | 506.22 mi (814.69 km) |
| Mechernich to Ozorkow | 553.33 mi (890.49 km) |
| Mechernich to Pabianice | 556.19 mi (895.11 km) |
| Mechernich to Parczew | 705.50 mi (1,135.39 km) |
