| Gardhabaer to Oberkirch | 1,549.08 mi (2,493.01 km) |
| Gardhabaer to Obernburg am Main | 1,504.59 mi (2,421.40 km) |
| Gardhabaer to Obernkirchen | 1,374.60 mi (2,212.21 km) |
| Gardhabaer to Oberschleissheim | 1,658.41 mi (2,668.96 km) |
| Gardhabaer to Oberstdorf | 1,670.87 mi (2,689.00 km) |
| Gardhabaer to Obertraubling | 1,635.47 mi (2,632.04 km) |
| Gardhabaer to Obertshausen | 1,483.82 mi (2,387.98 km) |
| Gardhabaer to Oberursel | 1,469.41 mi (2,364.78 km) |
| Gardhabaer to Ochsenfurt | 1,540.21 mi (2,478.73 km) |
| Gardhabaer to Ochsenhausen | 1,624.57 mi (2,614.49 km) |
| Gardhabaer to Ochtrup | 1,324.21 mi (2,131.11 km) |
| Gardhabaer to Odenthal | 1,384.79 mi (2,228.60 km) |
| Gardhabaer to Oelde | 1,370.25 mi (2,205.20 km) |
| Gardhabaer to Oelsnitz | 1,557.28 mi (2,506.20 km) |
| Gardhabaer to Oer-Erkenschwick | 1,355.69 mi (2,181.78 km) |
