| Aguas Santas to Oberkirch | 957.40 mi (1,540.79 km) |
| Aguas Santas to Obernburg am Main | 1,040.93 mi (1,675.21 km) |
| Aguas Santas to Obernkirchen | 1,128.78 mi (1,816.59 km) |
| Aguas Santas to Oberschleissheim | 1,098.02 mi (1,767.09 km) |
| Aguas Santas to Oberstdorf | 1,023.07 mi (1,646.48 km) |
| Aguas Santas to Obertraubling | 1,140.38 mi (1,835.27 km) |
| Aguas Santas to Obertshausen | 1,036.49 mi (1,668.07 km) |
| Aguas Santas to Oberursel | 1,031.37 mi (1,659.83 km) |
| Aguas Santas to Ochsenfurt | 1,071.77 mi (1,724.84 km) |
| Aguas Santas to Ochsenhausen | 1,023.66 mi (1,647.42 km) |
| Aguas Santas to Ochtrup | 1,061.51 mi (1,708.33 km) |
| Aguas Santas to Odenthal | 1,009.34 mi (1,624.38 km) |
| Aguas Santas to Oelde | 1,077.92 mi (1,734.74 km) |
| Aguas Santas to Oelsnitz | 1,178.66 mi (1,896.87 km) |
| Aguas Santas to Oer-Erkenschwick | 1,039.25 mi (1,672.51 km) |
