| West Lafayette to Oberkirch | 4,405.50 mi (7,089.96 km) |
| West Lafayette to Obernburg am Main | 4,397.57 mi (7,077.21 km) |
| West Lafayette to Obernkirchen | 4,308.24 mi (6,933.44 km) |
| West Lafayette to Oberschleissheim | 4,549.73 mi (7,322.09 km) |
| West Lafayette to Oberstdorf | 4,532.99 mi (7,295.14 km) |
| West Lafayette to Obertraubling | 4,544.36 mi (7,313.43 km) |
| West Lafayette to Obertshausen | 4,377.63 mi (7,045.12 km) |
| West Lafayette to Oberursel | 4,363.00 mi (7,021.57 km) |
| West Lafayette to Ochsenfurt | 4,439.43 mi (7,144.58 km) |
| West Lafayette to Ochsenhausen | 4,494.75 mi (7,233.60 km) |
| West Lafayette to Ochtrup | 4,240.28 mi (6,824.06 km) |
| West Lafayette to Odenthal | 4,278.53 mi (6,885.62 km) |
| West Lafayette to Oelde | 4,288.49 mi (6,901.66 km) |
| West Lafayette to Oelsnitz | 4,487.96 mi (7,222.67 km) |
| West Lafayette to Oer-Erkenschwick | 4,262.13 mi (6,859.24 km) |
