| Pianoro to Oak Harbor (Washington) | 5,453.05 mi (8,775.83 km) |
| Pianoro to Oak Hills (Oregon) | 5,620.66 mi (9,045.58 km) |
| Pianoro to Oak Lawn (Illinois) | 4,670.25 mi (7,516.04 km) |
| Pianoro to Oak Park (California) | 6,170.13 mi (9,929.86 km) |
| Pianoro to Oak Park (Illinois) | 4,663.98 mi (7,505.94 km) |
| Pianoro to Oak Park (Michigan) | 4,455.60 mi (7,170.59 km) |
| Pianoro to Oak Ridge (Florida) | 4,998.43 mi (8,044.20 km) |
| Pianoro to Oak Ridge (New Jersey) | 4,153.00 mi (6,683.61 km) |
| Pianoro to Oak Ridge (Tennessee) | 4,785.72 mi (7,701.87 km) |
| Pianoro to Oakdale (California) | 6,024.51 mi (9,695.51 km) |
| Pianoro to Oakdale (Minnesota) | 4,719.46 mi (7,595.24 km) |
| Pianoro to Oakland (California) | 6,062.05 mi (9,755.93 km) |
| Pianoro to Oakland (New Jersey) | 4,142.05 mi (6,665.99 km) |
| Pianoro to Oakland Park (Florida) | 5,045.60 mi (8,120.11 km) |
| Pianoro to Oakleaf Plantation (Florida) | 4,939.87 mi (7,949.96 km) |
