| Martos to Oberkirch | 960.82 mi (1,546.28 km) |
| Martos to Obernburg am Main | 1,059.41 mi (1,704.96 km) |
| Martos to Obernkirchen | 1,187.30 mi (1,910.77 km) |
| Martos to Oberschleissheim | 1,066.81 mi (1,716.86 km) |
| Martos to Oberstdorf | 984.09 mi (1,583.74 km) |
| Martos to Obertraubling | 1,118.72 mi (1,800.41 km) |
| Martos to Obertshausen | 1,061.87 mi (1,708.91 km) |
| Martos to Oberursel | 1,061.56 mi (1,708.42 km) |
| Martos to Ochsenfurt | 1,078.73 mi (1,736.05 km) |
| Martos to Ochsenhausen | 1,001.02 mi (1,610.99 km) |
| Martos to Ochtrup | 1,137.05 mi (1,829.90 km) |
| Martos to Odenthal | 1,067.93 mi (1,718.67 km) |
| Martos to Oelde | 1,138.76 mi (1,832.66 km) |
| Martos to Oelsnitz | 1,182.97 mi (1,903.80 km) |
| Martos to Oer-Erkenschwick | 1,105.93 mi (1,779.82 km) |
