| Rijeka to Oestrich-Winkel | 440.22 mi (708.46 km) |
| Rijeka to Offenburg | 375.89 mi (604.94 km) |
| Rijeka to Oftersheim | 391.19 mi (629.57 km) |
| Rijeka to Ohrdruf | 416.71 mi (670.63 km) |
| Rijeka to Ohringen | 353.79 mi (569.37 km) |
| Rijeka to Olbernhau | 372.45 mi (599.40 km) |
| Rijeka to Olching | 247.47 mi (398.27 km) |
| Rijeka to Oldenburg | 608.24 mi (978.86 km) |
| Rijeka to Oldenburg in Holstein | 639.72 mi (1,029.53 km) |
| Rijeka to Olfen | 546.46 mi (879.44 km) |
| Rijeka to Olpe | 496.81 mi (799.54 km) |
| Rijeka to Olsberg | 497.67 mi (800.92 km) |
| Rijeka to Oranienburg | 516.04 mi (830.49 km) |
| Rijeka to Ortenberg | 427.65 mi (688.24 km) |
| Rijeka to Oschatz | 417.21 mi (671.43 km) |
