| Grove City to Oerlinghausen | 4,188.66 mi (6,740.99 km) |
| Grove City to Oestrich-Winkel | 4,228.21 mi (6,804.65 km) |
| Grove City to Offenburg | 4,277.28 mi (6,883.62 km) |
| Grove City to Oftersheim | 4,272.24 mi (6,875.50 km) |
| Grove City to Ohrdruf | 4,304.79 mi (6,927.88 km) |
| Grove City to Ohringen | 4,313.89 mi (6,942.54 km) |
| Grove City to Olbernhau | 4,408.02 mi (7,094.02 km) |
| Grove City to Olching | 4,420.44 mi (7,114.02 km) |
| Grove City to Oldenburg | 4,133.82 mi (6,652.74 km) |
| Grove City to Oldenburg in Holstein | 4,192.69 mi (6,747.49 km) |
| Grove City to Olfen | 4,148.37 mi (6,676.16 km) |
| Grove City to Olpe | 4,188.19 mi (6,740.24 km) |
| Grove City to Olsberg | 4,202.01 mi (6,762.48 km) |
| Grove City to Oranienburg | 4,329.56 mi (6,967.75 km) |
| Grove City to Ortenberg | 4,257.06 mi (6,851.08 km) |
