| Bad Gandersheim to Obernburg am Main | 145.58 mi (234.30 km) |
| Bad Gandersheim to Obernkirchen | 47.21 mi (75.97 km) |
| Bad Gandersheim to Oberschleissheim | 259.40 mi (417.47 km) |
| Bad Gandersheim to Oberstdorf | 308.52 mi (496.51 km) |
| Bad Gandersheim to Obertraubling | 221.80 mi (356.95 km) |
| Bad Gandersheim to Obertshausen | 135.08 mi (217.38 km) |
| Bad Gandersheim to Oberursel | 131.34 mi (211.37 km) |
| Bad Gandersheim to Ochsenfurt | 153.53 mi (247.08 km) |
| Bad Gandersheim to Ochsenhausen | 262.56 mi (422.54 km) |
| Bad Gandersheim to Ochtrup | 122.67 mi (197.42 km) |
| Bad Gandersheim to Odenthal | 137.97 mi (222.05 km) |
| Bad Gandersheim to Oelde | 80.08 mi (128.87 km) |
| Bad Gandersheim to Oelsnitz | 136.83 mi (220.20 km) |
| Bad Gandersheim to Oer-Erkenschwick | 119.71 mi (192.66 km) |
| Bad Gandersheim to Oerlinghausen | 58.26 mi (93.77 km) |
