| Geldern to Oak Harbor (Washington) | 4,911.66 mi (7,904.55 km) |
| Geldern to Oak Hills (Oregon) | 5,080.75 mi (8,176.67 km) |
| Geldern to Oak Lawn (Illinois) | 4,201.11 mi (6,761.03 km) |
| Geldern to Oak Park (California) | 5,646.87 mi (9,087.76 km) |
| Geldern to Oak Park (Illinois) | 4,194.05 mi (6,749.67 km) |
| Geldern to Oak Park (Michigan) | 3,995.82 mi (6,430.65 km) |
| Geldern to Oak Ridge (Florida) | 4,612.24 mi (7,422.69 km) |
| Geldern to Oak Ridge (New Jersey) | 3,726.48 mi (5,997.19 km) |
| Geldern to Oak Ridge (Tennessee) | 4,351.83 mi (7,003.59 km) |
| Geldern to Oakdale (California) | 5,493.43 mi (8,840.82 km) |
| Geldern to Oakdale (Minnesota) | 4,225.93 mi (6,800.98 km) |
| Geldern to Oakland (California) | 5,529.06 mi (8,898.16 km) |
| Geldern to Oakland (New Jersey) | 3,716.37 mi (5,980.91 km) |
| Geldern to Oakland Park (Florida) | 4,677.07 mi (7,527.01 km) |
| Geldern to Oakleaf Plantation (Florida) | 4,543.30 mi (7,311.74 km) |
