| Marmara Ereglisi to Oberkirch | 1,101.67 mi (1,772.97 km) |
| Marmara Ereglisi to Obernburg am Main | 1,094.51 mi (1,761.45 km) |
| Marmara Ereglisi to Obernkirchen | 1,180.38 mi (1,899.64 km) |
| Marmara Ereglisi to Oberschleissheim | 947.23 mi (1,524.42 km) |
| Marmara Ereglisi to Oberstdorf | 979.19 mi (1,575.85 km) |
| Marmara Ereglisi to Obertraubling | 946.12 mi (1,522.64 km) |
| Marmara Ereglisi to Obertshausen | 1,113.82 mi (1,792.52 km) |
| Marmara Ereglisi to Oberursel | 1,128.22 mi (1,815.70 km) |
| Marmara Ereglisi to Ochsenfurt | 1,051.80 mi (1,692.70 km) |
| Marmara Ereglisi to Ochsenhausen | 1,010.26 mi (1,625.85 km) |
| Marmara Ereglisi to Ochtrup | 1,247.27 mi (2,007.28 km) |
| Marmara Ereglisi to Odenthal | 1,211.28 mi (1,949.36 km) |
| Marmara Ereglisi to Oelde | 1,199.05 mi (1,929.69 km) |
| Marmara Ereglisi to Oelsnitz | 999.66 mi (1,608.80 km) |
| Marmara Ereglisi to Oer-Erkenschwick | 1,225.83 mi (1,972.78 km) |
