| Tirebolu to Oberkirch | 1,582.10 mi (2,546.14 km) |
| Tirebolu to Obernburg am Main | 1,550.20 mi (2,494.80 km) |
| Tirebolu to Obernkirchen | 1,593.42 mi (2,564.37 km) |
| Tirebolu to Oberschleissheim | 1,421.20 mi (2,287.20 km) |
| Tirebolu to Oberstdorf | 1,471.47 mi (2,368.10 km) |
| Tirebolu to Obertraubling | 1,404.38 mi (2,260.13 km) |
| Tirebolu to Obertshausen | 1,566.82 mi (2,521.56 km) |
| Tirebolu to Oberursel | 1,579.89 mi (2,542.59 km) |
| Tirebolu to Ochsenfurt | 1,507.05 mi (2,425.37 km) |
| Tirebolu to Ochsenhausen | 1,492.80 mi (2,402.44 km) |
| Tirebolu to Ochtrup | 1,670.59 mi (2,688.56 km) |
| Tirebolu to Odenthal | 1,654.56 mi (2,662.76 km) |
| Tirebolu to Oelde | 1,624.50 mi (2,614.37 km) |
| Tirebolu to Oelsnitz | 1,430.10 mi (2,301.53 km) |
| Tirebolu to Oer-Erkenschwick | 1,658.43 mi (2,668.99 km) |
