| Demir Hisar to Oberkirch | 815.34 mi (1,312.16 km) |
| Demir Hisar to Obernburg am Main | 831.99 mi (1,338.95 km) |
| Demir Hisar to Obernkirchen | 951.19 mi (1,530.79 km) |
| Demir Hisar to Oberschleissheim | 676.91 mi (1,089.38 km) |
| Demir Hisar to Oberstdorf | 687.73 mi (1,106.79 km) |
| Demir Hisar to Obertraubling | 692.27 mi (1,114.10 km) |
| Demir Hisar to Obertshausen | 852.60 mi (1,372.13 km) |
| Demir Hisar to Oberursel | 867.37 mi (1,395.89 km) |
| Demir Hisar to Ochsenfurt | 792.53 mi (1,275.45 km) |
| Demir Hisar to Ochsenhausen | 726.82 mi (1,169.71 km) |
| Demir Hisar to Ochtrup | 1,004.81 mi (1,617.08 km) |
| Demir Hisar to Odenthal | 953.28 mi (1,534.15 km) |
| Demir Hisar to Oelde | 957.61 mi (1,541.13 km) |
| Demir Hisar to Oelsnitz | 768.86 mi (1,237.35 km) |
| Demir Hisar to Oer-Erkenschwick | 976.48 mi (1,571.49 km) |
