| Backnang to Obernburg am Main | 63.10 mi (101.54 km) |
| Backnang to Obernkirchen | 229.80 mi (369.83 km) |
| Backnang to Oberschleissheim | 108.82 mi (175.12 km) |
| Backnang to Oberstdorf | 113.14 mi (182.09 km) |
| Backnang to Obertraubling | 124.14 mi (199.79 km) |
| Backnang to Obertshausen | 81.91 mi (131.83 km) |
| Backnang to Oberursel | 94.89 mi (152.71 km) |
| Backnang to Ochsenfurt | 56.43 mi (90.82 km) |
| Backnang to Ochsenhausen | 64.88 mi (104.41 km) |
| Backnang to Ochtrup | 245.68 mi (395.38 km) |
| Backnang to Odenthal | 177.06 mi (284.95 km) |
| Backnang to Oelde | 207.28 mi (333.59 km) |
| Backnang to Oelsnitz | 158.99 mi (255.86 km) |
| Backnang to Oer-Erkenschwick | 209.62 mi (337.35 km) |
| Backnang to Oerlinghausen | 211.37 mi (340.16 km) |
