| Chios to Oberkirch | 1,140.93 mi (1,836.15 km) |
| Chios to Obernburg am Main | 1,152.04 mi (1,854.02 km) |
| Chios to Obernkirchen | 1,260.58 mi (2,028.70 km) |
| Chios to Oberschleissheim | 998.07 mi (1,606.24 km) |
| Chios to Oberstdorf | 1,013.71 mi (1,631.41 km) |
| Chios to Obertraubling | 1,008.40 mi (1,622.87 km) |
| Chios to Obertshausen | 1,172.40 mi (1,886.79 km) |
| Chios to Oberursel | 1,187.15 mi (1,910.53 km) |
| Chios to Ochsenfurt | 1,111.32 mi (1,788.50 km) |
| Chios to Ochsenhausen | 1,051.51 mi (1,692.24 km) |
| Chios to Ochtrup | 1,319.49 mi (2,123.52 km) |
| Chios to Odenthal | 1,272.70 mi (2,048.21 km) |
| Chios to Oelde | 1,271.64 mi (2,046.50 km) |
| Chios to Oelsnitz | 1,077.17 mi (1,733.53 km) |
| Chios to Oer-Erkenschwick | 1,293.33 mi (2,081.41 km) |
