| Blerick to Oberkirch | 213.79 mi (344.06 km) |
| Blerick to Obernburg am Main | 168.31 mi (270.86 km) |
| Blerick to Obernkirchen | 141.17 mi (227.19 km) |
| Blerick to Oberschleissheim | 323.43 mi (520.51 km) |
| Blerick to Oberstdorf | 330.39 mi (531.71 km) |
| Blerick to Obertraubling | 313.59 mi (504.68 km) |
| Blerick to Obertshausen | 147.79 mi (237.85 km) |
| Blerick to Oberursel | 133.03 mi (214.09 km) |
| Blerick to Ochsenfurt | 208.97 mi (336.31 km) |
| Blerick to Ochsenhausen | 283.82 mi (456.76 km) |
| Blerick to Ochtrup | 73.05 mi (117.56 km) |
| Blerick to Odenthal | 47.77 mi (76.88 km) |
| Blerick to Oelde | 91.69 mi (147.55 km) |
| Blerick to Oelsnitz | 270.23 mi (434.89 km) |
| Blerick to Oer-Erkenschwick | 51.03 mi (82.12 km) |
