| Piekary Slaskie to Oerlinghausen | 458.26 mi (737.49 km) |
| Piekary Slaskie to Oestrich-Winkel | 484.66 mi (779.98 km) |
| Piekary Slaskie to Offenburg | 511.97 mi (823.93 km) |
| Piekary Slaskie to Oftersheim | 466.40 mi (750.60 km) |
| Piekary Slaskie to Ohrdruf | 361.45 mi (581.69 km) |
| Piekary Slaskie to Ohringen | 429.06 mi (690.50 km) |
| Piekary Slaskie to Olbernhau | 247.43 mi (398.20 km) |
| Piekary Slaskie to Olching | 375.38 mi (604.11 km) |
| Piekary Slaskie to Oldenburg | 496.52 mi (799.08 km) |
| Piekary Slaskie to Oldenburg in Holstein | 434.50 mi (699.27 km) |
| Piekary Slaskie to Olfen | 510.21 mi (821.10 km) |
| Piekary Slaskie to Olpe | 487.99 mi (785.34 km) |
| Piekary Slaskie to Olsberg | 460.87 mi (741.70 km) |
| Piekary Slaskie to Oranienburg | 294.89 mi (474.58 km) |
| Piekary Slaskie to Ortenberg | 435.74 mi (701.26 km) |
