| Smarjeske Toplice to Oberkirch | 382.35 mi (615.33 km) |
| Smarjeske Toplice to Obernburg am Main | 393.47 mi (633.22 km) |
| Smarjeske Toplice to Obernkirchen | 521.25 mi (838.88 km) |
| Smarjeske Toplice to Oberschleissheim | 238.31 mi (383.52 km) |
| Smarjeske Toplice to Oberstdorf | 257.63 mi (414.62 km) |
| Smarjeske Toplice to Obertraubling | 257.59 mi (414.56 km) |
| Smarjeske Toplice to Obertshausen | 414.13 mi (666.48 km) |
| Smarjeske Toplice to Oberursel | 428.88 mi (690.22 km) |
| Smarjeske Toplice to Ochsenfurt | 354.55 mi (570.59 km) |
| Smarjeske Toplice to Ochsenhausen | 291.68 mi (469.42 km) |
| Smarjeske Toplice to Ochtrup | 568.90 mi (915.55 km) |
| Smarjeske Toplice to Odenthal | 514.82 mi (828.52 km) |
| Smarjeske Toplice to Oelde | 522.54 mi (840.95 km) |
| Smarjeske Toplice to Oelsnitz | 344.69 mi (554.73 km) |
| Smarjeske Toplice to Oer-Erkenschwick | 539.13 mi (867.64 km) |
