| Pirot to Oakley (California) | 6,399.69 mi (10,299.31 km) |
| Pirot to Oakton (Virginia) | 4,879.16 mi (7,852.25 km) |
| Pirot to Oakville (Missouri) | 5,409.56 mi (8,705.84 km) |
| Pirot to Oatfield (Oregon) | 5,954.35 mi (9,582.60 km) |
| Pirot to Ocala (Florida) | 5,536.46 mi (8,910.07 km) |
| Pirot to Ocean Acres (New Jersey) | 4,717.08 mi (7,591.41 km) |
| Pirot to Ocean City (New Jersey) | 4,751.03 mi (7,646.04 km) |
| Pirot to Ocean Pines (Maryland) | 4,812.44 mi (7,744.88 km) |
| Pirot to Ocean Pointe (Hawaii) | 7,982.43 mi (12,846.47 km) |
| Pirot to Ocean Springs (Mississippi) | 5,754.57 mi (9,261.08 km) |
| Pirot to Oceanside (California) | 6,583.23 mi (10,594.69 km) |
| Pirot to Oceanside (New York) | 4,652.21 mi (7,487.02 km) |
| Pirot to Ocoee (Florida) | 5,538.47 mi (8,913.30 km) |
| Pirot to Oconomowoc (Wisconsin) | 5,112.56 mi (8,227.87 km) |
| Pirot to Odenton (Maryland) | 4,846.32 mi (7,799.39 km) |
