| Targu Neamt to Oberkirch | 849.99 mi (1,367.93 km) |
| Targu Neamt to Obernburg am Main | 806.76 mi (1,298.36 km) |
| Targu Neamt to Obernkirchen | 842.97 mi (1,356.63 km) |
| Targu Neamt to Oberschleissheim | 690.20 mi (1,110.77 km) |
| Targu Neamt to Oberstdorf | 752.13 mi (1,210.43 km) |
| Targu Neamt to Obertraubling | 665.25 mi (1,070.61 km) |
| Targu Neamt to Obertshausen | 822.22 mi (1,323.24 km) |
| Targu Neamt to Oberursel | 834.69 mi (1,343.31 km) |
| Targu Neamt to Ochsenfurt | 764.23 mi (1,229.91 km) |
| Targu Neamt to Ochsenhausen | 764.92 mi (1,231.01 km) |
| Targu Neamt to Ochtrup | 920.19 mi (1,480.91 km) |
| Targu Neamt to Odenthal | 906.50 mi (1,458.87 km) |
| Targu Neamt to Oelde | 874.28 mi (1,407.02 km) |
| Targu Neamt to Oelsnitz | 681.60 mi (1,096.94 km) |
| Targu Neamt to Oer-Erkenschwick | 908.72 mi (1,462.44 km) |
