| Ferndale to Oberkirch | 4,166.15 mi (6,704.76 km) |
| Ferndale to Obernburg am Main | 4,159.08 mi (6,693.39 km) |
| Ferndale to Obernkirchen | 4,071.29 mi (6,552.11 km) |
| Ferndale to Oberschleissheim | 4,310.95 mi (6,937.81 km) |
| Ferndale to Oberstdorf | 4,293.56 mi (6,909.82 km) |
| Ferndale to Obertraubling | 4,306.09 mi (6,929.98 km) |
| Ferndale to Obertshausen | 4,139.20 mi (6,661.39 km) |
| Ferndale to Oberursel | 4,124.58 mi (6,637.88 km) |
| Ferndale to Ochsenfurt | 4,201.04 mi (6,760.93 km) |
| Ferndale to Ochsenhausen | 4,255.55 mi (6,848.64 km) |
| Ferndale to Ochtrup | 4,002.79 mi (6,441.87 km) |
| Ferndale to Odenthal | 4,040.27 mi (6,502.18 km) |
| Ferndale to Oelde | 4,050.99 mi (6,519.43 km) |
| Ferndale to Oelsnitz | 4,250.56 mi (6,840.62 km) |
| Ferndale to Oer-Erkenschwick | 4,024.29 mi (6,476.46 km) |
