| Fort Thomas to Carrollwood (Florida) | 769.64 mi (1,238.61 km) |
| Fort Thomas to Carson (California) | 1,901.76 mi (3,060.59 km) |
| Fort Thomas to Carson City (Nevada) | 1,879.97 mi (3,025.52 km) |
| Fort Thomas to Carteret (New Jersey) | 551.97 mi (888.31 km) |
| Fort Thomas to Cartersville (Georgia) | 340.19 mi (547.49 km) |
| Fort Thomas to Carthage (Missouri) | 552.58 mi (889.29 km) |
| Fort Thomas to Cary (Illinois) | 294.02 mi (473.19 km) |
| Fort Thomas to Cary (North Carolina) | 383.83 mi (617.71 km) |
| Fort Thomas to Casa de Oro-Mount Helix (California) | 1,860.36 mi (2,993.96 km) |
| Fort Thomas to Casa Grande (Arizona) | 1,578.46 mi (2,540.29 km) |
| Fort Thomas to Casas Adobes (Arizona) | 1,554.56 mi (2,501.83 km) |
| Fort Thomas to Cascades (Virginia) | 378.90 mi (609.78 km) |
| Fort Thomas to Casper (Wyoming) | 1,166.69 mi (1,877.61 km) |
| Fort Thomas to Casselberry (Florida) | 741.71 mi (1,193.67 km) |
| Fort Thomas to Castaic (California) | 1,906.49 mi (3,068.20 km) |
