| Tomball to Port Charlotte (Florida) | 846.69 mi (1,362.62 km) |
| Tomball to Port Chester (New York) | 1,439.77 mi (2,317.08 km) |
| Tomball to Port Hueneme (California) | 1,404.93 mi (2,261.01 km) |
| Tomball to Port Huron (Michigan) | 1,149.51 mi (1,849.96 km) |
| Tomball to Port Lavaca (Texas) | 118.75 mi (191.11 km) |
| Tomball to Port Neches (Texas) | 100.43 mi (161.63 km) |
| Tomball to Port Orange (Florida) | 879.48 mi (1,415.39 km) |
| Tomball to Port Orchard (Washington) | 1,872.12 mi (3,012.89 km) |
| Tomball to Port Royal (South Carolina) | 894.28 mi (1,439.21 km) |
| Tomball to Port Salerno (Florida) | 956.94 mi (1,540.04 km) |
| Tomball to Port St. John (Florida) | 898.77 mi (1,446.43 km) |
| Tomball to Port St. Lucie (Florida) | 942.67 mi (1,517.08 km) |
| Tomball to Port Washington (New York) | 1,434.27 mi (2,308.24 km) |
| Tomball to Port Washington (Wisconsin) | 1,012.02 mi (1,628.69 km) |
| Tomball to Port Wentworth (Georgia) | 864.29 mi (1,390.95 km) |
