| Tomball to Oak Grove (South Carolina) | 888.17 mi (1,429.38 km) |
| Tomball to Oak Harbor (Washington) | 1,898.74 mi (3,055.73 km) |
| Tomball to Oak Hills (Oregon) | 1,814.65 mi (2,920.40 km) |
| Tomball to Oak Lawn (Illinois) | 914.58 mi (1,471.88 km) |
| Tomball to Oak Park (California) | 1,380.21 mi (2,221.23 km) |
| Tomball to Oak Park (Illinois) | 923.88 mi (1,486.84 km) |
| Tomball to Oak Park (Michigan) | 1,097.62 mi (1,766.45 km) |
| Tomball to Oak Ridge (Florida) | 862.63 mi (1,388.26 km) |
| Tomball to Oak Ridge (New Jersey) | 1,401.48 mi (2,255.47 km) |
| Tomball to Oak Ridge (Tennessee) | 770.43 mi (1,239.89 km) |
| Tomball to Oakdale (California) | 1,534.36 mi (2,469.31 km) |
| Tomball to Oakdale (Minnesota) | 1,039.04 mi (1,672.18 km) |
| Tomball to Oakland (California) | 1,607.94 mi (2,587.73 km) |
| Tomball to Oakland (New Jersey) | 1,413.49 mi (2,274.79 km) |
| Tomball to Oakland Park (Florida) | 979.50 mi (1,576.36 km) |
