| Cartaxo to Oberkirch | 1,057.55 mi (1,701.96 km) |
| Cartaxo to Obernburg am Main | 1,146.30 mi (1,844.79 km) |
| Cartaxo to Obernkirchen | 1,245.23 mi (2,004.01 km) |
| Cartaxo to Oberschleissheim | 1,189.67 mi (1,914.59 km) |
| Cartaxo to Oberstdorf | 1,111.42 mi (1,788.67 km) |
| Cartaxo to Obertraubling | 1,235.36 mi (1,988.12 km) |
| Cartaxo to Obertshausen | 1,143.67 mi (1,840.56 km) |
| Cartaxo to Oberursel | 1,139.78 mi (1,834.29 km) |
| Cartaxo to Ochsenfurt | 1,174.30 mi (1,889.85 km) |
| Cartaxo to Ochsenhausen | 1,117.03 mi (1,797.69 km) |
| Cartaxo to Ochtrup | 1,181.38 mi (1,901.25 km) |
| Cartaxo to Odenthal | 1,124.73 mi (1,810.08 km) |
| Cartaxo to Oelde | 1,194.50 mi (1,922.37 km) |
| Cartaxo to Oelsnitz | 1,281.49 mi (2,062.36 km) |
| Cartaxo to Oer-Erkenschwick | 1,156.87 mi (1,861.80 km) |
