| Penrith to Oak Harbor (Washington) | 4,513.90 mi (7,264.42 km) |
| Penrith to Oak Hills (Oregon) | 4,678.76 mi (7,529.74 km) |
| Penrith to Oak Lawn (Illinois) | 3,766.70 mi (6,061.92 km) |
| Penrith to Oak Park (California) | 5,224.07 mi (8,407.33 km) |
| Penrith to Oak Park (Illinois) | 3,759.60 mi (6,050.49 km) |
| Penrith to Oak Park (Michigan) | 3,562.35 mi (5,733.04 km) |
| Penrith to Oak Ridge (Florida) | 4,196.31 mi (6,753.31 km) |
| Penrith to Oak Ridge (New Jersey) | 3,299.93 mi (5,310.73 km) |
| Penrith to Oak Ridge (Tennessee) | 3,922.59 mi (6,312.81 km) |
| Penrith to Oakdale (California) | 5,077.33 mi (8,171.17 km) |
| Penrith to Oakdale (Minnesota) | 3,792.15 mi (6,102.88 km) |
| Penrith to Oakland (California) | 5,115.15 mi (8,232.03 km) |
| Penrith to Oakland (New Jersey) | 3,290.06 mi (5,294.85 km) |
| Penrith to Oakland Park (Florida) | 4,267.35 mi (6,867.63 km) |
| Penrith to Oakleaf Plantation (Florida) | 4,124.06 mi (6,637.03 km) |
