| Humble to Carlsbad (California) | 1,311.73 mi (2,111.02 km) |
| Humble to Carlsbad (New Mexico) | 555.63 mi (894.20 km) |
| Humble to Carmel (Indiana) | 859.94 mi (1,383.94 km) |
| Humble to Carmichael (California) | 1,595.62 mi (2,567.90 km) |
| Humble to Carney (Maryland) | 1,243.76 mi (2,001.64 km) |
| Humble to Carnot-Moon (Pennsylvania) | 1,115.05 mi (1,794.49 km) |
| Humble to Carol Stream (Illinois) | 914.70 mi (1,472.06 km) |
| Humble to Carolina (Puerto Rico) | 2,003.98 mi (3,225.10 km) |
| Humble to Carolina Forest (South Carolina) | 992.97 mi (1,598.04 km) |
| Humble to Carpentersville (Illinois) | 923.46 mi (1,486.16 km) |
| Humble to Carpinteria (California) | 1,446.25 mi (2,327.51 km) |
| Humble to Carrboro (North Carolina) | 1,021.85 mi (1,644.51 km) |
| Humble to Carroll (Iowa) | 834.79 mi (1,343.47 km) |
| Humble to Carrollton (Georgia) | 646.97 mi (1,041.20 km) |
| Humble to Carrollton (Texas) | 228.35 mi (367.50 km) |
