| Kazanlak to Novi di Modena | 739.41 mi (1,189.97 km) |
| Kazanlak to Novi Ligure | 841.64 mi (1,354.49 km) |
| Kazanlak to Nuoro | 845.53 mi (1,360.74 km) |
| Kazanlak to Occhiobello | 706.68 mi (1,137.30 km) |
| Kazanlak to Oderzo | 674.78 mi (1,085.95 km) |
| Kazanlak to Oggiono | 822.98 mi (1,324.45 km) |
| Kazanlak to Olbia | 826.51 mi (1,330.14 km) |
| Kazanlak to Oleggio | 855.22 mi (1,376.34 km) |
| Kazanlak to Olgiate Comasco | 841.19 mi (1,353.77 km) |
| Kazanlak to Olgiate Olona | 843.59 mi (1,357.62 km) |
| Kazanlak to Omegna | 868.84 mi (1,398.26 km) |
| Kazanlak to Opera | 825.19 mi (1,328.01 km) |
| Kazanlak to Oppeano | 729.90 mi (1,174.67 km) |
| Kazanlak to Orbassano | 903.87 mi (1,454.64 km) |
| Kazanlak to Orbetello | 721.66 mi (1,161.40 km) |
