| Reguengos de Monsaraz to Oberkirch | 1,045.94 mi (1,683.27 km) |
| Reguengos de Monsaraz to Obernburg am Main | 1,138.33 mi (1,831.97 km) |
| Reguengos de Monsaraz to Obernkirchen | 1,246.70 mi (2,006.37 km) |
| Reguengos de Monsaraz to Oberschleissheim | 1,170.76 mi (1,884.15 km) |
| Reguengos de Monsaraz to Oberstdorf | 1,090.64 mi (1,755.22 km) |
| Reguengos de Monsaraz to Obertraubling | 1,218.65 mi (1,961.23 km) |
| Reguengos de Monsaraz to Obertshausen | 1,137.25 mi (1,830.22 km) |
| Reguengos de Monsaraz to Oberursel | 1,134.43 mi (1,825.69 km) |
| Reguengos de Monsaraz to Ochsenfurt | 1,163.82 mi (1,872.99 km) |
| Reguengos de Monsaraz to Ochsenhausen | 1,099.84 mi (1,770.02 km) |
| Reguengos de Monsaraz to Ochtrup | 1,186.59 mi (1,909.64 km) |
| Reguengos de Monsaraz to Odenthal | 1,125.81 mi (1,811.82 km) |
| Reguengos de Monsaraz to Oelde | 1,196.35 mi (1,925.33 km) |
| Reguengos de Monsaraz to Oelsnitz | 1,270.68 mi (2,044.97 km) |
| Reguengos de Monsaraz to Oer-Erkenschwick | 1,159.93 mi (1,866.73 km) |
