| Costa de Caparica to Oberkirch | 1,099.25 mi (1,769.07 km) |
| Costa de Caparica to Obernburg am Main | 1,188.34 mi (1,912.45 km) |
| Costa de Caparica to Obernkirchen | 1,287.75 mi (2,072.43 km) |
| Costa de Caparica to Oberschleissheim | 1,230.54 mi (1,980.36 km) |
| Costa de Caparica to Oberstdorf | 1,151.99 mi (1,853.95 km) |
| Costa de Caparica to Obertraubling | 1,276.54 mi (2,054.39 km) |
| Costa de Caparica to Obertshausen | 1,185.83 mi (1,908.40 km) |
| Costa de Caparica to Oberursel | 1,182.00 mi (1,902.25 km) |
| Costa de Caparica to Ochsenfurt | 1,216.14 mi (1,957.18 km) |
| Costa de Caparica to Ochsenhausen | 1,158.11 mi (1,863.80 km) |
| Costa de Caparica to Ochtrup | 1,223.94 mi (1,969.74 km) |
| Costa de Caparica to Odenthal | 1,167.23 mi (1,878.48 km) |
| Costa de Caparica to Oelde | 1,237.02 mi (1,990.80 km) |
| Costa de Caparica to Oelsnitz | 1,323.32 mi (2,129.68 km) |
| Costa de Caparica to Oer-Erkenschwick | 1,199.41 mi (1,930.26 km) |
