| Meram to Opole | 1,136.45 mi (1,828.95 km) |
| Meram to Orzesze | 1,085.79 mi (1,747.42 km) |
| Meram to Osowa | 1,321.67 mi (2,127.03 km) |
| Meram to Ostroda | 1,245.91 mi (2,005.09 km) |
| Meram to Ostroleka | 1,173.83 mi (1,889.10 km) |
| Meram to Ostrow Mazowiecka | 1,150.91 mi (1,852.21 km) |
| Meram to Ostrow Wielkopolski | 1,189.33 mi (1,914.04 km) |
| Meram to Ostrowiec Swietokrzyski | 1,053.78 mi (1,695.90 km) |
| Meram to Ostrzeszow | 1,174.07 mi (1,889.49 km) |
| Meram to Oswiecim | 1,065.85 mi (1,715.33 km) |
| Meram to Otwock | 1,124.73 mi (1,810.07 km) |
| Meram to Ozarow Mazowiecki | 1,141.42 mi (1,836.94 km) |
| Meram to Ozimek | 1,128.26 mi (1,815.77 km) |
| Meram to Ozorkow | 1,165.49 mi (1,875.68 km) |
| Meram to Pabianice | 1,145.70 mi (1,843.83 km) |
