| Keskin to Oberkirch | 1,397.89 mi (2,249.69 km) |
| Keskin to Obernburg am Main | 1,381.75 mi (2,223.71 km) |
| Keskin to Obernkirchen | 1,451.36 mi (2,335.74 km) |
| Keskin to Oberschleissheim | 1,240.06 mi (1,995.68 km) |
| Keskin to Oberstdorf | 1,278.61 mi (2,057.73 km) |
| Keskin to Obertraubling | 1,232.99 mi (1,984.31 km) |
| Keskin to Obertshausen | 1,400.20 mi (2,253.40 km) |
| Keskin to Oberursel | 1,414.21 mi (2,275.95 km) |
| Keskin to Ochsenfurt | 1,338.51 mi (2,154.12 km) |
| Keskin to Ochsenhausen | 1,306.62 mi (2,102.80 km) |
| Keskin to Ochtrup | 1,523.10 mi (2,451.19 km) |
| Keskin to Odenthal | 1,494.70 mi (2,405.49 km) |
| Keskin to Oelde | 1,475.31 mi (2,374.28 km) |
| Keskin to Oelsnitz | 1,275.89 mi (2,053.35 km) |
| Keskin to Oer-Erkenschwick | 1,505.19 mi (2,422.37 km) |
