| Piera to Oakley (California) | 5,889.94 mi (9,478.94 km) |
| Piera to Oakton (Virginia) | 4,021.64 mi (6,472.20 km) |
| Piera to Oakville (Missouri) | 4,627.98 mi (7,448.01 km) |
| Piera to Oatfield (Oregon) | 5,519.61 mi (8,882.96 km) |
| Piera to Ocala (Florida) | 4,621.02 mi (7,436.82 km) |
| Piera to Ocean Acres (New Jersey) | 3,851.93 mi (6,199.09 km) |
| Piera to Ocean City (New Jersey) | 3,882.72 mi (6,248.63 km) |
| Piera to Ocean Pines (Maryland) | 3,938.20 mi (6,337.92 km) |
| Piera to Ocean Pointe (Hawaii) | 7,906.15 mi (12,723.72 km) |
| Piera to Ocean Springs (Mississippi) | 4,889.14 mi (7,868.31 km) |
| Piera to Oceanside (California) | 5,984.56 mi (9,631.23 km) |
| Piera to Oceanside (New York) | 3,793.00 mi (6,104.24 km) |
| Piera to Ocoee (Florida) | 4,615.06 mi (7,427.22 km) |
| Piera to Oconomowoc (Wisconsin) | 4,367.86 mi (7,029.39 km) |
| Piera to Odenton (Maryland) | 3,987.23 mi (6,416.83 km) |
