| Webster Groves to Oak Grove (South Carolina) | 603.18 mi (970.72 km) |
| Webster Groves to Oak Harbor (Washington) | 1,736.66 mi (2,794.89 km) |
| Webster Groves to Oak Hills (Oregon) | 1,721.11 mi (2,769.86 km) |
| Webster Groves to Oak Lawn (Illinois) | 256.03 mi (412.04 km) |
| Webster Groves to Oak Park (California) | 1,602.69 mi (2,579.29 km) |
| Webster Groves to Oak Park (Illinois) | 265.11 mi (426.66 km) |
| Webster Groves to Oak Park (Michigan) | 461.98 mi (743.49 km) |
| Webster Groves to Oak Ridge (Florida) | 866.92 mi (1,395.17 km) |
| Webster Groves to Oak Ridge (New Jersey) | 857.16 mi (1,379.47 km) |
| Webster Groves to Oak Ridge (Tennessee) | 379.18 mi (610.23 km) |
| Webster Groves to Oakdale (California) | 1,649.60 mi (2,654.78 km) |
| Webster Groves to Oakdale (Minnesota) | 462.18 mi (743.81 km) |
| Webster Groves to Oakland (California) | 1,722.47 mi (2,772.05 km) |
| Webster Groves to Oakland (New Jersey) | 870.44 mi (1,400.83 km) |
| Webster Groves to Oakland Park (Florida) | 1,042.13 mi (1,677.15 km) |
