| DeKalb to Oberkirch | 4,405.34 mi (7,089.72 km) |
| DeKalb to Obernburg am Main | 4,393.42 mi (7,070.52 km) |
| DeKalb to Obernkirchen | 4,298.53 mi (6,917.82 km) |
| DeKalb to Oberschleissheim | 4,546.68 mi (7,317.17 km) |
| DeKalb to Oberstdorf | 4,533.11 mi (7,295.33 km) |
| DeKalb to Obertraubling | 4,539.13 mi (7,305.02 km) |
| DeKalb to Obertshausen | 4,373.26 mi (7,038.07 km) |
| DeKalb to Oberursel | 4,358.56 mi (7,014.42 km) |
| DeKalb to Ochsenfurt | 4,434.80 mi (7,137.12 km) |
| DeKalb to Ochsenhausen | 4,493.75 mi (7,231.99 km) |
| DeKalb to Ochtrup | 4,232.43 mi (6,811.44 km) |
| DeKalb to Odenthal | 4,273.52 mi (6,877.56 km) |
| DeKalb to Oelde | 4,280.67 mi (6,889.07 km) |
| DeKalb to Oelsnitz | 4,479.55 mi (7,209.14 km) |
| DeKalb to Oer-Erkenschwick | 4,255.57 mi (6,848.68 km) |
