| Gadsden to Oberkirch | 4,675.79 mi (7,524.96 km) |
| Gadsden to Obernburg am Main | 4,677.85 mi (7,528.27 km) |
| Gadsden to Obernkirchen | 4,602.46 mi (7,406.94 km) |
| Gadsden to Oberschleissheim | 4,826.30 mi (7,767.18 km) |
| Gadsden to Oberstdorf | 4,801.74 mi (7,727.65 km) |
| Gadsden to Obertraubling | 4,826.31 mi (7,767.19 km) |
| Gadsden to Obertshausen | 4,658.58 mi (7,497.25 km) |
| Gadsden to Oberursel | 4,644.21 mi (7,474.13 km) |
| Gadsden to Ochsenfurt | 4,720.60 mi (7,597.07 km) |
| Gadsden to Ochsenhausen | 4,766.56 mi (7,671.04 km) |
| Gadsden to Ochtrup | 4,530.50 mi (7,291.13 km) |
| Gadsden to Odenthal | 4,561.66 mi (7,341.28 km) |
| Gadsden to Oelde | 4,578.35 mi (7,368.15 km) |
| Gadsden to Oelsnitz | 4,777.95 mi (7,689.36 km) |
| Gadsden to Oer-Erkenschwick | 4,549.14 mi (7,321.14 km) |
