| Kos to Oberkirch | 1,257.66 mi (2,024.00 km) |
| Kos to Obernburg am Main | 1,271.09 mi (2,045.61 km) |
| Kos to Obernkirchen | 1,381.26 mi (2,222.93 km) |
| Kos to Oberschleissheim | 1,116.73 mi (1,797.20 km) |
| Kos to Oberstdorf | 1,130.12 mi (1,818.75 km) |
| Kos to Obertraubling | 1,128.17 mi (1,815.62 km) |
| Kos to Obertshausen | 1,291.52 mi (2,078.51 km) |
| Kos to Oberursel | 1,306.28 mi (2,102.26 km) |
| Kos to Ochsenfurt | 1,230.65 mi (1,980.54 km) |
| Kos to Ochsenhausen | 1,168.79 mi (1,880.99 km) |
| Kos to Ochtrup | 1,439.65 mi (2,316.89 km) |
| Kos to Odenthal | 1,391.96 mi (2,240.15 km) |
| Kos to Oelde | 1,391.86 mi (2,239.98 km) |
| Kos to Oelsnitz | 1,197.86 mi (1,927.76 km) |
| Kos to Oer-Erkenschwick | 1,413.13 mi (2,274.21 km) |
