| Gronau to Oak Harbor (Washington) | 4,887.99 mi (7,866.46 km) |
| Gronau to Oak Hills (Oregon) | 5,058.27 mi (8,140.50 km) |
| Gronau to Oak Lawn (Illinois) | 4,201.88 mi (6,762.27 km) |
| Gronau to Oak Park (California) | 5,632.43 mi (9,064.53 km) |
| Gronau to Oak Park (Illinois) | 4,194.66 mi (6,750.66 km) |
| Gronau to Oak Park (Michigan) | 3,998.69 mi (6,435.27 km) |
| Gronau to Oak Ridge (Florida) | 4,627.02 mi (7,446.46 km) |
| Gronau to Oak Ridge (New Jersey) | 3,735.75 mi (6,012.11 km) |
| Gronau to Oak Ridge (Tennessee) | 4,359.24 mi (7,015.52 km) |
| Gronau to Oakdale (California) | 5,475.86 mi (8,812.54 km) |
| Gronau to Oakdale (Minnesota) | 4,221.06 mi (6,793.14 km) |
| Gronau to Oakland (California) | 5,510.58 mi (8,868.42 km) |
| Gronau to Oakland (New Jersey) | 3,725.79 mi (5,996.08 km) |
| Gronau to Oakland Park (Florida) | 4,694.28 mi (7,554.71 km) |
| Gronau to Oakleaf Plantation (Florida) | 4,556.60 mi (7,333.14 km) |
