| Tomball to Candler-McAfee (Georgia) | 710.74 mi (1,143.83 km) |
| Tomball to Caño Martin Peña (Puerto Rico) | 2,021.35 mi (3,253.05 km) |
| Tomball to Cañon City (Colorado) | 794.80 mi (1,279.11 km) |
| Tomball to Canóvanas (Puerto Rico) | 2,032.00 mi (3,270.19 km) |
| Tomball to Canton (Georgia) | 710.77 mi (1,143.87 km) |
| Tomball to Canton (Illinois) | 788.22 mi (1,268.52 km) |
| Tomball to Canton (Mississippi) | 372.22 mi (599.04 km) |
| Tomball to Canton (Ohio) | 1,088.78 mi (1,752.22 km) |
| Tomball to Canyon (Texas) | 498.84 mi (802.81 km) |
| Tomball to Canyon Lake (California) | 1,291.15 mi (2,077.91 km) |
| Tomball to Canyon Lake (Texas) | 158.81 mi (255.58 km) |
| Tomball to Cape Coral (Florida) | 861.24 mi (1,386.03 km) |
| Tomball to Cape Girardeau (Missouri) | 607.85 mi (978.24 km) |
| Tomball to Carbondale (Illinois) | 641.63 mi (1,032.61 km) |
| Tomball to Carlisle (Pennsylvania) | 1,248.93 mi (2,009.96 km) |
