| Trofaiach to Obernburg am Main | 315.37 mi (507.54 km) |
| Trofaiach to Obernkirchen | 424.78 mi (683.61 km) |
| Trofaiach to Oberschleissheim | 169.37 mi (272.58 km) |
| Trofaiach to Oberstdorf | 220.99 mi (355.65 km) |
| Trofaiach to Obertraubling | 168.57 mi (271.29 km) |
| Trofaiach to Obertshausen | 335.08 mi (539.27 km) |
| Trofaiach to Oberursel | 349.67 mi (562.74 km) |
| Trofaiach to Ochsenfurt | 273.20 mi (439.67 km) |
| Trofaiach to Ochsenhausen | 239.16 mi (384.89 km) |
| Trofaiach to Ochtrup | 479.59 mi (771.83 km) |
| Trofaiach to Odenthal | 434.19 mi (698.77 km) |
| Trofaiach to Oelde | 431.95 mi (695.16 km) |
| Trofaiach to Oelsnitz | 243.52 mi (391.90 km) |
| Trofaiach to Oer-Erkenschwick | 453.24 mi (729.42 km) |
| Trofaiach to Oerlinghausen | 422.43 mi (679.83 km) |
