| Povoa de Santa Iria to Oberkirch | 1,082.37 mi (1,741.91 km) |
| Povoa de Santa Iria to Obernburg am Main | 1,171.27 mi (1,884.98 km) |
| Povoa de Santa Iria to Obernkirchen | 1,270.36 mi (2,044.44 km) |
| Povoa de Santa Iria to Oberschleissheim | 1,214.09 mi (1,953.89 km) |
| Povoa de Santa Iria to Oberstdorf | 1,135.69 mi (1,827.72 km) |
| Povoa de Santa Iria to Obertraubling | 1,259.93 mi (2,027.67 km) |
| Povoa de Santa Iria to Obertshausen | 1,168.69 mi (1,880.83 km) |
| Povoa de Santa Iria to Oberursel | 1,164.82 mi (1,874.60 km) |
| Povoa de Santa Iria to Ochsenfurt | 1,199.18 mi (1,929.90 km) |
| Povoa de Santa Iria to Ochsenhausen | 1,141.56 mi (1,837.16 km) |
| Povoa de Santa Iria to Ochtrup | 1,206.48 mi (1,941.64 km) |
| Povoa de Santa Iria to Odenthal | 1,149.86 mi (1,850.51 km) |
| Povoa de Santa Iria to Oelde | 1,219.63 mi (1,962.80 km) |
| Povoa de Santa Iria to Oelsnitz | 1,306.37 mi (2,102.40 km) |
| Povoa de Santa Iria to Oer-Erkenschwick | 1,181.99 mi (1,902.23 km) |
