| Isperih to Obernburg am Main | 934.81 mi (1,504.43 km) |
| Isperih to Obernkirchen | 1,005.57 mi (1,618.32 km) |
| Isperih to Oberschleissheim | 795.30 mi (1,279.92 km) |
| Isperih to Oberstdorf | 838.55 mi (1,349.52 km) |
| Isperih to Obertraubling | 786.18 mi (1,265.23 km) |
| Isperih to Obertshausen | 953.09 mi (1,533.86 km) |
| Isperih to Oberursel | 967.04 mi (1,556.30 km) |
| Isperih to Ochsenfurt | 891.52 mi (1,434.76 km) |
| Isperih to Ochsenhausen | 863.75 mi (1,390.07 km) |
| Isperih to Ochtrup | 1,076.30 mi (1,732.14 km) |
| Isperih to Odenthal | 1,047.29 mi (1,685.45 km) |
| Isperih to Oelde | 1,028.40 mi (1,655.05 km) |
| Isperih to Oelsnitz | 828.81 mi (1,333.84 km) |
| Isperih to Oer-Erkenschwick | 1,057.91 mi (1,702.54 km) |
| Isperih to Oerlinghausen | 1,012.75 mi (1,629.87 km) |
