| Volterra to Oak Harbor (Washington) | 5,500.93 mi (8,852.89 km) |
| Volterra to Oak Hills (Oregon) | 5,667.28 mi (9,120.60 km) |
| Volterra to Oak Lawn (Illinois) | 4,692.78 mi (7,552.30 km) |
| Volterra to Oak Park (California) | 6,207.86 mi (9,990.59 km) |
| Volterra to Oak Park (Illinois) | 4,686.70 mi (7,542.51 km) |
| Volterra to Oak Park (Michigan) | 4,476.14 mi (7,203.65 km) |
| Volterra to Oak Ridge (Florida) | 5,003.42 mi (8,052.23 km) |
| Volterra to Oak Ridge (New Jersey) | 4,166.76 mi (6,705.75 km) |
| Volterra to Oak Ridge (Tennessee) | 4,800.27 mi (7,725.28 km) |
| Volterra to Oakdale (California) | 6,065.76 mi (9,761.90 km) |
| Volterra to Oakdale (Minnesota) | 4,748.23 mi (7,641.53 km) |
| Volterra to Oakland (California) | 6,104.25 mi (9,823.85 km) |
| Volterra to Oakland (New Jersey) | 4,155.66 mi (6,687.88 km) |
| Volterra to Oakland Park (Florida) | 5,047.36 mi (8,122.94 km) |
| Volterra to Oakleaf Plantation (Florida) | 4,946.86 mi (7,961.20 km) |
