| Niedernhausen to Oakley (California) | 5,630.12 mi (9,060.80 km) |
| Niedernhausen to Oakton (Virginia) | 4,052.83 mi (6,522.40 km) |
| Niedernhausen to Oakville (Missouri) | 4,580.21 mi (7,371.13 km) |
| Niedernhausen to Oatfield (Oregon) | 5,208.55 mi (8,382.35 km) |
| Niedernhausen to Ocala (Florida) | 4,718.96 mi (7,594.43 km) |
| Niedernhausen to Ocean Acres (New Jersey) | 3,892.14 mi (6,263.80 km) |
| Niedernhausen to Ocean City (New Jersey) | 3,926.46 mi (6,319.03 km) |
| Niedernhausen to Ocean Pines (Maryland) | 3,988.64 mi (6,419.10 km) |
| Niedernhausen to Ocean Pointe (Hawaii) | 7,428.06 mi (11,954.31 km) |
| Niedernhausen to Ocean Springs (Mississippi) | 4,927.53 mi (7,930.10 km) |
| Niedernhausen to Oceanside (California) | 5,787.75 mi (9,314.48 km) |
| Niedernhausen to Oceanside (New York) | 3,826.62 mi (6,158.35 km) |
| Niedernhausen to Ocoee (Florida) | 4,723.14 mi (7,601.17 km) |
| Niedernhausen to Oconomowoc (Wisconsin) | 4,285.15 mi (6,896.29 km) |
| Niedernhausen to Odenton (Maryland) | 4,020.25 mi (6,469.96 km) |
