| Round Lake Beach to Oak Grove (South Carolina) | 691.37 mi (1,112.65 km) |
| Round Lake Beach to Oak Harbor (Washington) | 1,711.54 mi (2,754.46 km) |
| Round Lake Beach to Oak Hills (Oregon) | 1,728.83 mi (2,782.29 km) |
| Round Lake Beach to Oak Lawn (Illinois) | 48.95 mi (78.78 km) |
| Round Lake Beach to Oak Park (California) | 1,746.72 mi (2,811.07 km) |
| Round Lake Beach to Oak Park (Illinois) | 37.12 mi (59.74 km) |
| Round Lake Beach to Oak Park (Michigan) | 249.89 mi (402.16 km) |
| Round Lake Beach to Oak Ridge (Florida) | 1,030.63 mi (1,658.63 km) |
| Round Lake Beach to Oak Ridge (New Jersey) | 706.08 mi (1,136.33 km) |
| Round Lake Beach to Oak Ridge (Tennessee) | 487.33 mi (784.28 km) |
| Round Lake Beach to Oakdale (California) | 1,750.34 mi (2,816.90 km) |
| Round Lake Beach to Oakdale (Minnesota) | 303.24 mi (488.02 km) |
| Round Lake Beach to Oakland (California) | 1,819.54 mi (2,928.26 km) |
| Round Lake Beach to Oakland (New Jersey) | 719.16 mi (1,157.38 km) |
| Round Lake Beach to Oakland Park (Florida) | 1,206.04 mi (1,940.93 km) |
