| Fort Wayne to Oberkirch | 4,306.52 mi (6,930.67 km) |
| Fort Wayne to Obernburg am Main | 4,299.49 mi (6,919.36 km) |
| Fort Wayne to Obernkirchen | 4,211.55 mi (6,777.83 km) |
| Fort Wayne to Oberschleissheim | 4,451.36 mi (7,163.77 km) |
| Fort Wayne to Oberstdorf | 4,433.92 mi (7,135.71 km) |
| Fort Wayne to Obertraubling | 4,446.49 mi (7,155.93 km) |
| Fort Wayne to Obertshausen | 4,279.60 mi (6,887.35 km) |
| Fort Wayne to Oberursel | 4,264.99 mi (6,863.84 km) |
| Fort Wayne to Ochsenfurt | 4,341.45 mi (6,986.88 km) |
| Fort Wayne to Ochsenhausen | 4,395.93 mi (7,074.57 km) |
| Fort Wayne to Ochtrup | 4,143.12 mi (6,667.71 km) |
| Fort Wayne to Odenthal | 4,180.67 mi (6,728.13 km) |
| Fort Wayne to Oelde | 4,191.32 mi (6,745.28 km) |
| Fort Wayne to Oelsnitz | 4,390.88 mi (7,066.44 km) |
| Fort Wayne to Oer-Erkenschwick | 4,164.65 mi (6,702.36 km) |
