| Carlsbad to Oberkirch | 5,867.60 mi (9,442.99 km) |
| Carlsbad to Obernburg am Main | 5,834.07 mi (9,389.04 km) |
| Carlsbad to Obernkirchen | 5,710.19 mi (9,189.67 km) |
| Carlsbad to Oberschleissheim | 5,989.15 mi (9,638.61 km) |
| Carlsbad to Oberstdorf | 5,993.44 mi (9,645.52 km) |
| Carlsbad to Obertraubling | 5,969.43 mi (9,606.88 km) |
| Carlsbad to Obertshausen | 5,813.27 mi (9,355.56 km) |
| Carlsbad to Oberursel | 5,798.63 mi (9,331.99 km) |
| Carlsbad to Ochsenfurt | 5,871.58 mi (9,449.39 km) |
| Carlsbad to Ochsenhausen | 5,949.07 mi (9,574.10 km) |
| Carlsbad to Ochtrup | 5,657.08 mi (9,104.19 km) |
| Carlsbad to Odenthal | 5,712.96 mi (9,194.12 km) |
| Carlsbad to Oelde | 5,703.90 mi (9,179.54 km) |
| Carlsbad to Oelsnitz | 5,893.11 mi (9,484.04 km) |
| Carlsbad to Oer-Erkenschwick | 5,686.80 mi (9,152.02 km) |
