| Grevenmacher to Oakley (California) | 5,604.58 mi (9,019.70 km) |
| Grevenmacher to Oakton (Virginia) | 3,990.39 mi (6,421.91 km) |
| Grevenmacher to Oakville (Missouri) | 4,526.76 mi (7,285.12 km) |
| Grevenmacher to Oatfield (Oregon) | 5,189.75 mi (8,352.10 km) |
| Grevenmacher to Ocala (Florida) | 4,651.35 mi (7,485.63 km) |
| Grevenmacher to Ocean Acres (New Jersey) | 3,828.55 mi (6,161.46 km) |
| Grevenmacher to Ocean City (New Jersey) | 3,862.60 mi (6,216.26 km) |
| Grevenmacher to Ocean Pines (Maryland) | 3,924.26 mi (6,315.48 km) |
| Grevenmacher to Ocean Pointe (Hawaii) | 7,439.73 mi (11,973.09 km) |
| Grevenmacher to Ocean Springs (Mississippi) | 4,865.76 mi (7,830.68 km) |
| Grevenmacher to Oceanside (California) | 5,753.97 mi (9,260.11 km) |
| Grevenmacher to Oceanside (New York) | 3,763.54 mi (6,056.83 km) |
| Grevenmacher to Ocoee (Florida) | 4,654.64 mi (7,490.93 km) |
| Grevenmacher to Oconomowoc (Wisconsin) | 4,235.06 mi (6,815.68 km) |
| Grevenmacher to Odenton (Maryland) | 3,957.57 mi (6,369.10 km) |
