| Povoa de Varzim to Oberkirch | 957.38 mi (1,540.75 km) |
| Povoa de Varzim to Obernburg am Main | 1,040.02 mi (1,673.74 km) |
| Povoa de Varzim to Obernkirchen | 1,125.90 mi (1,811.96 km) |
| Povoa de Varzim to Oberschleissheim | 1,099.13 mi (1,768.87 km) |
| Povoa de Varzim to Oberstdorf | 1,024.70 mi (1,649.09 km) |
| Povoa de Varzim to Obertraubling | 1,140.98 mi (1,836.24 km) |
| Povoa de Varzim to Obertshausen | 1,035.28 mi (1,666.13 km) |
| Povoa de Varzim to Oberursel | 1,029.97 mi (1,657.57 km) |
| Povoa de Varzim to Ochsenfurt | 1,071.29 mi (1,724.07 km) |
| Povoa de Varzim to Ochsenhausen | 1,024.58 mi (1,648.90 km) |
| Povoa de Varzim to Ochtrup | 1,058.01 mi (1,702.71 km) |
| Povoa de Varzim to Odenthal | 1,006.73 mi (1,620.18 km) |
| Povoa de Varzim to Oelde | 1,075.05 mi (1,730.12 km) |
| Povoa de Varzim to Oelsnitz | 1,178.06 mi (1,895.90 km) |
| Povoa de Varzim to Oer-Erkenschwick | 1,036.20 mi (1,667.61 km) |
