| Corum to Oberkirch | 1,424.49 mi (2,292.49 km) |
| Corum to Obernburg am Main | 1,401.76 mi (2,255.91 km) |
| Corum to Obernkirchen | 1,461.16 mi (2,351.51 km) |
| Corum to Oberschleissheim | 1,264.84 mi (2,035.57 km) |
| Corum to Oberstdorf | 1,308.55 mi (2,105.91 km) |
| Corum to Obertraubling | 1,253.67 mi (2,017.59 km) |
| Corum to Obertshausen | 1,419.52 mi (2,284.50 km) |
| Corum to Oberursel | 1,433.20 mi (2,306.51 km) |
| Corum to Ochsenfurt | 1,358.41 mi (2,186.15 km) |
| Corum to Ochsenhausen | 1,333.78 mi (2,146.50 km) |
| Corum to Ochtrup | 1,535.23 mi (2,470.71 km) |
| Corum to Odenthal | 1,511.60 mi (2,432.69 km) |
| Corum to Oelde | 1,487.95 mi (2,394.62 km) |
| Corum to Oelsnitz | 1,289.78 mi (2,075.70 km) |
| Corum to Oer-Erkenschwick | 1,519.51 mi (2,445.41 km) |
