| Grove City to Oberkirch | 4,280.98 mi (6,889.58 km) |
| Grove City to Obernburg am Main | 4,277.92 mi (6,884.65 km) |
| Grove City to Obernkirchen | 4,195.66 mi (6,752.26 km) |
| Grove City to Oberschleissheim | 4,428.42 mi (7,126.86 km) |
| Grove City to Oberstdorf | 4,407.90 mi (7,093.82 km) |
| Grove City to Obertraubling | 4,425.71 mi (7,122.49 km) |
| Grove City to Obertshausen | 4,258.29 mi (6,853.05 km) |
| Grove City to Oberursel | 4,243.77 mi (6,829.69 km) |
| Grove City to Ochsenfurt | 4,320.27 mi (6,952.80 km) |
| Grove City to Ochsenhausen | 4,371.07 mi (7,034.56 km) |
| Grove City to Ochtrup | 4,125.51 mi (6,639.37 km) |
| Grove City to Odenthal | 4,160.17 mi (6,695.14 km) |
| Grove City to Oelde | 4,173.59 mi (6,716.75 km) |
| Grove City to Oelsnitz | 4,373.35 mi (7,038.22 km) |
| Grove City to Oer-Erkenschwick | 4,145.73 mi (6,671.91 km) |
