| Matosinhos to Oberkirch | 963.06 mi (1,549.89 km) |
| Matosinhos to Obernburg am Main | 1,046.45 mi (1,684.10 km) |
| Matosinhos to Obernkirchen | 1,133.93 mi (1,824.88 km) |
| Matosinhos to Oberschleissheim | 1,103.82 mi (1,776.43 km) |
| Matosinhos to Oberstdorf | 1,028.93 mi (1,655.91 km) |
| Matosinhos to Obertraubling | 1,146.13 mi (1,844.51 km) |
| Matosinhos to Obertshausen | 1,041.96 mi (1,676.88 km) |
| Matosinhos to Oberursel | 1,036.81 mi (1,668.59 km) |
| Matosinhos to Ochsenfurt | 1,077.36 mi (1,733.85 km) |
| Matosinhos to Ochsenhausen | 1,029.44 mi (1,656.73 km) |
| Matosinhos to Ochtrup | 1,066.52 mi (1,716.40 km) |
| Matosinhos to Odenthal | 1,014.55 mi (1,632.76 km) |
| Matosinhos to Oelde | 1,083.07 mi (1,743.04 km) |
| Matosinhos to Oelsnitz | 1,184.23 mi (1,905.84 km) |
| Matosinhos to Oer-Erkenschwick | 1,044.36 mi (1,680.74 km) |
