| Oldbury to Oerlinghausen | 453.13 mi (729.24 km) |
| Oldbury to Oestrich-Winkel | 465.94 mi (749.86 km) |
| Oldbury to Offenburg | 518.12 mi (833.83 km) |
| Oldbury to Oftersheim | 509.18 mi (819.45 km) |
| Oldbury to Ohrdruf | 557.70 mi (897.53 km) |
| Oldbury to Ohringen | 550.98 mi (886.71 km) |
| Oldbury to Olbernhau | 669.73 mi (1,077.82 km) |
| Oldbury to Olching | 657.39 mi (1,057.97 km) |
| Oldbury to Oldenburg | 429.00 mi (690.41 km) |
| Oldbury to Oldenburg in Holstein | 544.79 mi (876.76 km) |
| Oldbury to Olfen | 402.24 mi (647.34 km) |
| Oldbury to Olpe | 433.19 mi (697.16 km) |
| Oldbury to Olsberg | 453.98 mi (730.60 km) |
| Oldbury to Oranienburg | 638.69 mi (1,027.88 km) |
| Oldbury to Ortenberg | 498.91 mi (802.92 km) |
