| Maardu to Obernburg am Main | 915.24 mi (1,472.94 km) |
| Maardu to Obernkirchen | 789.08 mi (1,269.90 km) |
| Maardu to Oberschleissheim | 945.97 mi (1,522.39 km) |
| Maardu to Oberstdorf | 1,026.15 mi (1,651.44 km) |
| Maardu to Obertraubling | 889.43 mi (1,431.41 km) |
| Maardu to Obertshausen | 911.27 mi (1,466.55 km) |
| Maardu to Oberursel | 911.01 mi (1,466.12 km) |
| Maardu to Ochsenfurt | 901.29 mi (1,450.48 km) |
| Maardu to Ochsenhausen | 994.94 mi (1,601.21 km) |
| Maardu to Ochtrup | 850.45 mi (1,368.66 km) |
| Maardu to Odenthal | 909.95 mi (1,464.42 km) |
| Maardu to Oelde | 839.25 mi (1,350.65 km) |
| Maardu to Oelsnitz | 804.61 mi (1,294.89 km) |
| Maardu to Oer-Erkenschwick | 875.70 mi (1,409.30 km) |
| Maardu to Oerlinghausen | 817.26 mi (1,315.26 km) |
