| Tomball to Petaluma (California) | 1,636.11 mi (2,633.06 km) |
| Tomball to Petersburg (Virginia) | 1,155.11 mi (1,858.97 km) |
| Tomball to Pflugerville (Texas) | 120.83 mi (194.45 km) |
| Tomball to Pharr (Texas) | 313.25 mi (504.13 km) |
| Tomball to Phelan (California) | 1,311.67 mi (2,110.93 km) |
| Tomball to Phenix City (Alabama) | 646.24 mi (1,040.02 km) |
| Tomball to Philadelphia (Pennsylvania) | 1,341.12 mi (2,158.33 km) |
| Tomball to Phillipsburg (New Jersey) | 1,358.92 mi (2,186.97 km) |
| Tomball to Phoenix (Arizona) | 994.97 mi (1,601.26 km) |
| Tomball to Phoenixville (Pennsylvania) | 1,326.31 mi (2,134.48 km) |
| Tomball to Picayune (Mississippi) | 355.96 mi (572.86 km) |
| Tomball to Pickerington (Ohio) | 991.55 mi (1,595.74 km) |
| Tomball to Pico Rivera (California) | 1,340.31 mi (2,157.03 km) |
| Tomball to Piedmont (California) | 1,609.10 mi (2,589.60 km) |
| Tomball to Pierre (South Dakota) | 1,019.49 mi (1,640.71 km) |
