| Hisarcik to Orbetello | 965.25 mi (1,553.42 km) |
| Hisarcik to Oria | 620.57 mi (998.70 km) |
| Hisarcik to Oristano | 1,097.65 mi (1,766.50 km) |
| Hisarcik to Orta Nova | 726.11 mi (1,168.55 km) |
| Hisarcik to Orte | 906.17 mi (1,458.34 km) |
| Hisarcik to Ortona | 803.58 mi (1,293.23 km) |
| Hisarcik to Orvieto | 922.79 mi (1,485.08 km) |
| Hisarcik to Orzinuovi | 1,070.03 mi (1,722.05 km) |
| Hisarcik to Osimo | 865.77 mi (1,393.33 km) |
| Hisarcik to Ospitaletto | 1,066.67 mi (1,716.64 km) |
| Hisarcik to Ostuni | 624.57 mi (1,005.15 km) |
| Hisarcik to Ottaviano | 787.16 mi (1,266.81 km) |
| Hisarcik to Ovada | 1,117.84 mi (1,798.98 km) |
| Hisarcik to Ozieri | 1,073.53 mi (1,727.68 km) |
| Hisarcik to Paceco | 903.50 mi (1,454.04 km) |
