| Koropi to Oberkirch | 1,078.61 mi (1,735.86 km) |
| Koropi to Obernburg am Main | 1,100.11 mi (1,770.46 km) |
| Koropi to Obernkirchen | 1,221.11 mi (1,965.18 km) |
| Koropi to Oberschleissheim | 944.81 mi (1,520.53 km) |
| Koropi to Oberstdorf | 950.78 mi (1,530.13 km) |
| Koropi to Obertraubling | 961.78 mi (1,547.84 km) |
| Koropi to Obertshausen | 1,120.81 mi (1,803.77 km) |
| Koropi to Oberursel | 1,135.56 mi (1,827.50 km) |
| Koropi to Ochsenfurt | 1,061.22 mi (1,707.87 km) |
| Koropi to Ochsenhausen | 991.72 mi (1,596.01 km) |
| Koropi to Ochtrup | 1,274.31 mi (2,050.81 km) |
| Koropi to Odenthal | 1,221.50 mi (1,965.81 km) |
| Koropi to Oelde | 1,227.25 mi (1,975.07 km) |
| Koropi to Oelsnitz | 1,038.71 mi (1,671.65 km) |
| Koropi to Oer-Erkenschwick | 1,245.55 mi (2,004.51 km) |
