| Petrosani to Oakley (California) | 6,278.48 mi (10,104.23 km) |
| Petrosani to Oakton (Virginia) | 4,820.20 mi (7,757.35 km) |
| Petrosani to Oakville (Missouri) | 5,332.55 mi (8,581.91 km) |
| Petrosani to Oatfield (Oregon) | 5,826.63 mi (9,377.05 km) |
| Petrosani to Ocala (Florida) | 5,489.22 mi (8,834.04 km) |
| Petrosani to Ocean Acres (New Jersey) | 4,660.58 mi (7,500.48 km) |
| Petrosani to Ocean City (New Jersey) | 4,695.11 mi (7,556.04 km) |
| Petrosani to Ocean Pines (Maryland) | 4,757.64 mi (7,656.68 km) |
| Petrosani to Ocean Pointe (Hawaii) | 7,825.58 mi (12,594.06 km) |
| Petrosani to Ocean Springs (Mississippi) | 5,693.86 mi (9,163.39 km) |
| Petrosani to Oceanside (California) | 6,472.31 mi (10,416.18 km) |
| Petrosani to Oceanside (New York) | 4,594.66 mi (7,394.39 km) |
| Petrosani to Ocoee (Florida) | 5,493.43 mi (8,840.82 km) |
| Petrosani to Oconomowoc (Wisconsin) | 5,030.08 mi (8,095.13 km) |
| Petrosani to Odenton (Maryland) | 4,787.85 mi (7,705.30 km) |
