| Hercules to Oberkirch | 5,727.60 mi (9,217.69 km) |
| Hercules to Obernburg am Main | 5,684.15 mi (9,147.75 km) |
| Hercules to Obernkirchen | 5,549.18 mi (8,930.54 km) |
| Hercules to Oberschleissheim | 5,837.45 mi (9,394.47 km) |
| Hercules to Oberstdorf | 5,850.39 mi (9,415.30 km) |
| Hercules to Obertraubling | 5,812.35 mi (9,354.07 km) |
| Hercules to Obertshausen | 5,663.40 mi (9,114.36 km) |
| Hercules to Oberursel | 5,649.03 mi (9,091.24 km) |
| Hercules to Ochsenfurt | 5,719.18 mi (9,204.13 km) |
| Hercules to Ochsenhausen | 5,804.27 mi (9,341.07 km) |
| Hercules to Ochtrup | 5,502.82 mi (8,855.93 km) |
| Hercules to Odenthal | 5,564.55 mi (8,955.27 km) |
| Hercules to Oelde | 5,548.17 mi (8,928.92 km) |
| Hercules to Oelsnitz | 5,729.72 mi (9,221.09 km) |
| Hercules to Oer-Erkenschwick | 5,535.02 mi (8,907.76 km) |
