| Fort Thomas to Castle Pines (Colorado) | 1,090.17 mi (1,754.45 km) |
| Fort Thomas to Castle Rock (Colorado) | 1,089.80 mi (1,753.87 km) |
| Fort Thomas to Castro Valley (California) | 2,024.33 mi (3,257.84 km) |
| Fort Thomas to Catalina Foothills (Arizona) | 1,548.92 mi (2,492.74 km) |
| Fort Thomas to Cataño (Puerto Rico) | 1,798.88 mi (2,895.02 km) |
| Fort Thomas to Cathedral City (California) | 1,805.71 mi (2,906.01 km) |
| Fort Thomas to Catonsville (Maryland) | 413.02 mi (664.70 km) |
| Fort Thomas to Cave Spring (Virginia) | 273.33 mi (439.89 km) |
| Fort Thomas to Cayce (South Carolina) | 402.00 mi (646.96 km) |
| Fort Thomas to Cayey (Puerto Rico) | 1,816.76 mi (2,923.79 km) |
| Fort Thomas to Cedar City (Utah) | 1,547.98 mi (2,491.23 km) |
| Fort Thomas to Cedar Falls (Iowa) | 480.98 mi (774.06 km) |
| Fort Thomas to Cedar Hill (Texas) | 830.96 mi (1,337.31 km) |
| Fort Thomas to Cedar Lake (Indiana) | 223.26 mi (359.29 km) |
| Fort Thomas to Cedar Mill (Oregon) | 1,989.57 mi (3,201.91 km) |
