| Orangeburg to Oerlinghausen | 4,419.94 mi (7,113.20 km) |
| Orangeburg to Oestrich-Winkel | 4,444.16 mi (7,152.18 km) |
| Orangeburg to Offenburg | 4,482.13 mi (7,213.30 km) |
| Orangeburg to Oftersheim | 4,485.02 mi (7,217.94 km) |
| Orangeburg to Ohrdruf | 4,532.53 mi (7,294.40 km) |
| Orangeburg to Ohringen | 4,527.57 mi (7,286.42 km) |
| Orangeburg to Olbernhau | 4,640.52 mi (7,468.19 km) |
| Orangeburg to Olching | 4,631.55 mi (7,453.76 km) |
| Orangeburg to Oldenburg | 4,372.50 mi (7,036.86 km) |
| Orangeburg to Oldenburg in Holstein | 4,444.41 mi (7,152.59 km) |
| Orangeburg to Olfen | 4,375.29 mi (7,041.35 km) |
| Orangeburg to Olpe | 4,411.03 mi (7,098.86 km) |
| Orangeburg to Olsberg | 4,428.57 mi (7,127.09 km) |
| Orangeburg to Oranienburg | 4,575.63 mi (7,363.77 km) |
| Orangeburg to Ortenberg | 4,477.84 mi (7,206.39 km) |
