| Iselin to Oberkirch | 3,894.58 mi (6,267.72 km) |
| Iselin to Obernburg am Main | 3,899.42 mi (6,275.50 km) |
| Iselin to Obernkirchen | 3,829.39 mi (6,162.81 km) |
| Iselin to Oberschleissheim | 4,046.49 mi (6,512.20 km) |
| Iselin to Oberstdorf | 4,019.99 mi (6,469.55 km) |
| Iselin to Obertraubling | 4,048.12 mi (6,514.82 km) |
| Iselin to Obertshausen | 3,880.39 mi (6,244.89 km) |
| Iselin to Oberursel | 3,866.14 mi (6,221.94 km) |
| Iselin to Ochsenfurt | 3,942.36 mi (6,344.62 km) |
| Iselin to Ochsenhausen | 3,985.59 mi (6,414.18 km) |
| Iselin to Ochtrup | 3,755.96 mi (6,044.63 km) |
| Iselin to Odenthal | 3,784.41 mi (6,090.42 km) |
| Iselin to Oelde | 3,803.55 mi (6,121.22 km) |
| Iselin to Oelsnitz | 4,002.71 mi (6,441.74 km) |
| Iselin to Oer-Erkenschwick | 3,773.31 mi (6,072.55 km) |
