| Hickory to Oberkirch | 4,400.31 mi (7,081.62 km) |
| Hickory to Obernburg am Main | 4,405.19 mi (7,089.47 km) |
| Hickory to Obernkirchen | 4,334.39 mi (6,975.53 km) |
| Hickory to Oberschleissheim | 4,552.30 mi (7,326.23 km) |
| Hickory to Oberstdorf | 4,525.64 mi (7,283.32 km) |
| Hickory to Obertraubling | 4,553.89 mi (7,328.77 km) |
| Hickory to Obertshausen | 4,386.15 mi (7,058.83 km) |
| Hickory to Oberursel | 4,371.89 mi (7,035.87 km) |
| Hickory to Ochsenfurt | 4,448.13 mi (7,158.57 km) |
| Hickory to Ochsenhausen | 4,491.34 mi (7,228.11 km) |
| Hickory to Ochtrup | 4,261.23 mi (6,857.79 km) |
| Hickory to Odenthal | 4,290.08 mi (6,904.22 km) |
| Hickory to Oelde | 4,308.88 mi (6,934.47 km) |
| Hickory to Oelsnitz | 4,508.13 mi (7,255.13 km) |
| Hickory to Oer-Erkenschwick | 4,278.80 mi (6,886.07 km) |
