| Westerlo to Oak Harbor (Washington) | 4,903.00 mi (7,890.62 km) |
| Westerlo to Oak Hills (Oregon) | 5,070.49 mi (8,160.16 km) |
| Westerlo to Oak Lawn (Illinois) | 4,164.36 mi (6,701.89 km) |
| Westerlo to Oak Park (California) | 5,626.49 mi (9,054.96 km) |
| Westerlo to Oak Park (Illinois) | 4,157.47 mi (6,690.80 km) |
| Westerlo to Oak Park (Michigan) | 3,957.02 mi (6,368.22 km) |
| Westerlo to Oak Ridge (Florida) | 4,562.29 mi (7,342.30 km) |
| Westerlo to Oak Ridge (New Jersey) | 3,681.61 mi (5,924.98 km) |
| Westerlo to Oak Ridge (Tennessee) | 4,308.54 mi (6,933.92 km) |
| Westerlo to Oakdale (California) | 5,476.86 mi (8,814.16 km) |
| Westerlo to Oakdale (Minnesota) | 4,195.09 mi (6,751.35 km) |
| Westerlo to Oakland (California) | 5,513.61 mi (8,873.30 km) |
| Westerlo to Oakland (New Jersey) | 3,671.36 mi (5,908.48 km) |
| Westerlo to Oakland Park (Florida) | 4,625.07 mi (7,443.33 km) |
| Westerlo to Oakleaf Plantation (Florida) | 4,494.63 mi (7,233.42 km) |
