| Cacem to Oberkirch | 1,096.05 mi (1,763.93 km) |
| Cacem to Obernburg am Main | 1,184.75 mi (1,906.67 km) |
| Cacem to Obernkirchen | 1,283.20 mi (2,065.11 km) |
| Cacem to Oberschleissheim | 1,228.08 mi (1,976.40 km) |
| Cacem to Oberstdorf | 1,149.75 mi (1,850.34 km) |
| Cacem to Obertraubling | 1,273.83 mi (2,050.03 km) |
| Cacem to Obertshausen | 1,182.08 mi (1,902.37 km) |
| Cacem to Oberursel | 1,178.14 mi (1,896.04 km) |
| Cacem to Ochsenfurt | 1,212.79 mi (1,951.80 km) |
| Cacem to Ochsenhausen | 1,155.48 mi (1,859.57 km) |
| Cacem to Ochtrup | 1,219.04 mi (1,961.86 km) |
| Cacem to Odenthal | 1,162.75 mi (1,871.26 km) |
| Cacem to Oelde | 1,232.45 mi (1,983.43 km) |
| Cacem to Oelsnitz | 1,319.98 mi (2,124.31 km) |
| Cacem to Oer-Erkenschwick | 1,194.73 mi (1,922.73 km) |
