| Carolina to Oberkirch | 4,549.81 mi (7,322.21 km) |
| Carolina to Obernburg am Main | 4,596.05 mi (7,396.63 km) |
| Carolina to Obernkirchen | 4,593.41 mi (7,392.38 km) |
| Carolina to Oberschleissheim | 4,710.25 mi (7,580.42 km) |
| Carolina to Oberstdorf | 4,653.93 mi (7,489.78 km) |
| Carolina to Obertraubling | 4,734.48 mi (7,619.42 km) |
| Carolina to Obertshausen | 4,582.10 mi (7,374.18 km) |
| Carolina to Oberursel | 4,570.64 mi (7,355.74 km) |
| Carolina to Ochsenfurt | 4,637.69 mi (7,463.63 km) |
| Carolina to Ochsenhausen | 4,636.40 mi (7,461.57 km) |
| Carolina to Ochtrup | 4,511.81 mi (7,261.05 km) |
| Carolina to Odenthal | 4,506.88 mi (7,253.13 km) |
| Carolina to Oelde | 4,552.15 mi (7,325.97 km) |
| Carolina to Oelsnitz | 4,728.48 mi (7,609.76 km) |
| Carolina to Oer-Erkenschwick | 4,513.48 mi (7,263.74 km) |
