| Katy to Carlsbad (California) | 1,282.57 mi (2,064.09 km) |
| Katy to Carlsbad (New Mexico) | 528.70 mi (850.86 km) |
| Katy to Carmel (Indiana) | 890.87 mi (1,433.71 km) |
| Katy to Carmichael (California) | 1,572.68 mi (2,530.98 km) |
| Katy to Carney (Maryland) | 1,279.48 mi (2,059.13 km) |
| Katy to Carnot-Moon (Pennsylvania) | 1,149.14 mi (1,849.36 km) |
| Katy to Carol Stream (Illinois) | 941.49 mi (1,515.19 km) |
| Katy to Carolina (Puerto Rico) | 2,032.81 mi (3,271.48 km) |
| Katy to Carolina Forest (South Carolina) | 1,029.80 mi (1,657.31 km) |
| Katy to Carpentersville (Illinois) | 949.87 mi (1,528.67 km) |
| Katy to Carpinteria (California) | 1,418.42 mi (2,282.73 km) |
| Katy to Carrboro (North Carolina) | 1,058.53 mi (1,703.54 km) |
| Katy to Carroll (Iowa) | 850.14 mi (1,368.17 km) |
| Katy to Carrollton (Georgia) | 683.79 mi (1,100.45 km) |
| Katy to Carrollton (Texas) | 229.74 mi (369.73 km) |
