| Knjazevac to Oberkirch | 769.71 mi (1,238.73 km) |
| Knjazevac to Obernburg am Main | 765.71 mi (1,232.30 km) |
| Knjazevac to Obernkirchen | 862.06 mi (1,387.35 km) |
| Knjazevac to Oberschleissheim | 616.35 mi (991.91 km) |
| Knjazevac to Oberstdorf | 647.12 mi (1,041.44 km) |
| Knjazevac to Obertraubling | 618.27 mi (995.01 km) |
| Knjazevac to Obertshausen | 785.40 mi (1,263.98 km) |
| Knjazevac to Oberursel | 799.96 mi (1,287.40 km) |
| Knjazevac to Ochsenfurt | 723.46 mi (1,164.30 km) |
| Knjazevac to Ochsenhausen | 678.33 mi (1,091.66 km) |
| Knjazevac to Ochtrup | 924.75 mi (1,488.24 km) |
| Knjazevac to Odenthal | 884.09 mi (1,422.81 km) |
| Knjazevac to Oelde | 876.57 mi (1,410.70 km) |
| Knjazevac to Oelsnitz | 679.11 mi (1,092.92 km) |
| Knjazevac to Oer-Erkenschwick | 901.06 mi (1,450.12 km) |
