| Radlje ob Dravi to Oerlinghausen | 472.99 mi (761.21 km) |
| Radlje ob Dravi to Oestrich-Winkel | 405.89 mi (653.22 km) |
| Radlje ob Dravi to Offenburg | 363.25 mi (584.59 km) |
| Radlje ob Dravi to Oftersheim | 361.13 mi (581.18 km) |
| Radlje ob Dravi to Ohrdruf | 355.78 mi (572.57 km) |
| Radlje ob Dravi to Ohringen | 319.61 mi (514.36 km) |
| Radlje ob Dravi to Olbernhau | 292.94 mi (471.45 km) |
| Radlje ob Dravi to Olching | 213.07 mi (342.90 km) |
| Radlje ob Dravi to Oldenburg | 548.03 mi (881.98 km) |
| Radlje ob Dravi to Oldenburg in Holstein | 564.02 mi (907.70 km) |
| Radlje ob Dravi to Olfen | 499.27 mi (803.49 km) |
| Radlje ob Dravi to Olpe | 453.06 mi (729.13 km) |
| Radlje ob Dravi to Olsberg | 447.43 mi (720.06 km) |
| Radlje ob Dravi to Oranienburg | 433.36 mi (697.42 km) |
| Radlje ob Dravi to Ortenberg | 382.73 mi (615.95 km) |
