| Okemos to Oberkirch | 4,204.64 mi (6,766.71 km) |
| Okemos to Obernburg am Main | 4,195.92 mi (6,752.68 km) |
| Okemos to Obernkirchen | 4,105.76 mi (6,607.58 km) |
| Okemos to Oberschleissheim | 4,348.30 mi (6,997.91 km) |
| Okemos to Oberstdorf | 4,332.20 mi (6,972.01 km) |
| Okemos to Obertraubling | 4,342.53 mi (6,988.63 km) |
| Okemos to Obertshausen | 4,175.94 mi (6,720.52 km) |
| Okemos to Oberursel | 4,161.29 mi (6,696.95 km) |
| Okemos to Ochsenfurt | 4,237.70 mi (6,819.92 km) |
| Okemos to Ochsenhausen | 4,293.72 mi (6,910.07 km) |
| Okemos to Ochtrup | 4,038.02 mi (6,498.57 km) |
| Okemos to Odenthal | 4,076.71 mi (6,560.83 km) |
| Okemos to Oelde | 4,086.25 mi (6,576.18 km) |
| Okemos to Oelsnitz | 4,285.65 mi (6,897.09 km) |
| Okemos to Oer-Erkenschwick | 4,060.07 mi (6,534.05 km) |
