| Efkarpia to Oakley (California) | 6,559.84 mi (10,557.04 km) |
| Efkarpia to Oakton (Virginia) | 4,994.72 mi (8,038.23 km) |
| Efkarpia to Oakville (Missouri) | 5,539.27 mi (8,914.59 km) |
| Efkarpia to Oatfield (Oregon) | 6,118.21 mi (9,846.31 km) |
| Efkarpia to Ocala (Florida) | 5,641.09 mi (9,078.46 km) |
| Efkarpia to Ocean Acres (New Jersey) | 4,830.78 mi (7,774.38 km) |
| Efkarpia to Ocean City (New Jersey) | 4,864.19 mi (7,828.15 km) |
| Efkarpia to Ocean Pines (Maryland) | 4,924.57 mi (7,925.33 km) |
| Efkarpia to Ocean Pointe (Hawaii) | 8,152.70 mi (13,120.50 km) |
| Efkarpia to Ocean Springs (Mississippi) | 5,870.56 mi (9,447.76 km) |
| Efkarpia to Oceanside (California) | 6,736.90 mi (10,841.99 km) |
| Efkarpia to Oceanside (New York) | 4,766.88 mi (7,671.56 km) |
| Efkarpia to Ocoee (Florida) | 5,641.15 mi (9,078.55 km) |
| Efkarpia to Oconomowoc (Wisconsin) | 5,246.81 mi (8,443.93 km) |
| Efkarpia to Odenton (Maryland) | 4,961.50 mi (7,984.76 km) |
