| Duisburg to Oak Harbor (Washington) | 4,926.66 mi (7,928.70 km) |
| Duisburg to Oak Hills (Oregon) | 5,096.03 mi (8,201.27 km) |
| Duisburg to Oak Lawn (Illinois) | 4,219.94 mi (6,791.35 km) |
| Duisburg to Oak Park (California) | 5,663.79 mi (9,114.98 km) |
| Duisburg to Oak Park (Illinois) | 4,212.87 mi (6,779.97 km) |
| Duisburg to Oak Park (Michigan) | 4,014.82 mi (6,461.23 km) |
| Duisburg to Oak Ridge (Florida) | 4,631.65 mi (7,453.93 km) |
| Duisburg to Oak Ridge (New Jersey) | 3,745.80 mi (6,028.29 km) |
| Duisburg to Oak Ridge (Tennessee) | 4,371.09 mi (7,034.58 km) |
| Duisburg to Oakdale (California) | 5,509.76 mi (8,867.10 km) |
| Duisburg to Oakdale (Minnesota) | 4,244.21 mi (6,830.39 km) |
| Duisburg to Oakland (California) | 5,545.21 mi (8,924.16 km) |
| Duisburg to Oakland (New Jersey) | 3,735.70 mi (6,012.02 km) |
| Duisburg to Oakland Park (Florida) | 4,696.46 mi (7,558.21 km) |
| Duisburg to Oakleaf Plantation (Florida) | 4,562.71 mi (7,342.97 km) |
