| Hisarcik to Oberkirch | 1,226.80 mi (1,974.34 km) |
| Hisarcik to Obernburg am Main | 1,224.03 mi (1,969.89 km) |
| Hisarcik to Obernkirchen | 1,314.20 mi (2,115.00 km) |
| Hisarcik to Oberschleissheim | 1,074.74 mi (1,729.63 km) |
| Hisarcik to Oberstdorf | 1,102.56 mi (1,774.40 km) |
| Hisarcik to Obertraubling | 1,076.22 mi (1,732.00 km) |
| Hisarcik to Obertshausen | 1,243.62 mi (2,001.41 km) |
| Hisarcik to Oberursel | 1,258.13 mi (2,024.76 km) |
| Hisarcik to Ochsenfurt | 1,181.63 mi (1,901.65 km) |
| Hisarcik to Ochsenhausen | 1,135.59 mi (1,827.56 km) |
| Hisarcik to Ochtrup | 1,379.94 mi (2,220.80 km) |
| Hisarcik to Odenthal | 1,341.89 mi (2,159.56 km) |
| Hisarcik to Oelde | 1,331.71 mi (2,143.17 km) |
| Hisarcik to Oelsnitz | 1,132.73 mi (1,822.95 km) |
| Hisarcik to Oer-Erkenschwick | 1,357.64 mi (2,184.91 km) |
