| Kazanlak to Orzesze | 608.85 mi (979.85 km) |
| Kazanlak to Osowa | 874.45 mi (1,407.28 km) |
| Kazanlak to Ostroda | 805.09 mi (1,295.67 km) |
| Kazanlak to Ostroleka | 743.31 mi (1,196.24 km) |
| Kazanlak to Ostrow Mazowiecka | 721.94 mi (1,161.86 km) |
| Kazanlak to Ostrow Wielkopolski | 717.83 mi (1,155.24 km) |
| Kazanlak to Ostrowiec Swietokrzyski | 604.76 mi (973.26 km) |
| Kazanlak to Ostrzeszow | 701.59 mi (1,129.10 km) |
| Kazanlak to Oswiecim | 590.99 mi (951.10 km) |
| Kazanlak to Otwock | 684.00 mi (1,100.79 km) |
| Kazanlak to Ozarow Mazowiecki | 696.93 mi (1,121.59 km) |
| Kazanlak to Ozimek | 652.03 mi (1,049.35 km) |
| Kazanlak to Ozorkow | 706.15 mi (1,136.44 km) |
| Kazanlak to Pabianice | 684.65 mi (1,101.84 km) |
| Kazanlak to Parczew | 634.16 mi (1,020.59 km) |
