| Blumberg to Obernburg am Main | 140.97 mi (226.87 km) |
| Blumberg to Obernkirchen | 306.98 mi (494.04 km) |
| Blumberg to Oberschleissheim | 142.92 mi (230.00 km) |
| Blumberg to Oberstdorf | 86.51 mi (139.22 km) |
| Blumberg to Obertraubling | 183.89 mi (295.95 km) |
| Blumberg to Obertshausen | 154.50 mi (248.65 km) |
| Blumberg to Oberursel | 163.35 mi (262.89 km) |
| Blumberg to Ochsenfurt | 143.27 mi (230.57 km) |
| Blumberg to Ochsenhausen | 67.37 mi (108.43 km) |
| Blumberg to Ochtrup | 307.52 mi (494.90 km) |
| Blumberg to Odenthal | 229.69 mi (369.64 km) |
| Blumberg to Oelde | 276.50 mi (444.98 km) |
| Blumberg to Oelsnitz | 242.20 mi (389.78 km) |
| Blumberg to Oer-Erkenschwick | 268.93 mi (432.80 km) |
| Blumberg to Oerlinghausen | 285.24 mi (459.05 km) |
