| Frederick to Candler-McAfee (Georgia) | 547.63 mi (881.33 km) |
| Frederick to Caño Martin Peña (Puerto Rico) | 1,602.32 mi (2,578.69 km) |
| Frederick to Cañon City (Colorado) | 1,490.02 mi (2,397.95 km) |
| Frederick to Canóvanas (Puerto Rico) | 1,610.06 mi (2,591.14 km) |
| Frederick to Canton (Georgia) | 530.25 mi (853.36 km) |
| Frederick to Canton (Illinois) | 672.28 mi (1,081.94 km) |
| Frederick to Canton (Mississippi) | 847.42 mi (1,363.79 km) |
| Frederick to Canton (Ohio) | 229.42 mi (369.21 km) |
| Frederick to Canyon (Texas) | 1,378.29 mi (2,218.15 km) |
| Frederick to Canyon Lake (California) | 2,228.33 mi (3,586.15 km) |
| Frederick to Canyon Lake (Texas) | 1,351.65 mi (2,175.27 km) |
| Frederick to Cape Coral (Florida) | 922.28 mi (1,484.27 km) |
| Frederick to Cape Girardeau (Missouri) | 673.49 mi (1,083.88 km) |
| Frederick to Carbondale (Illinois) | 648.26 mi (1,043.27 km) |
| Frederick to Carlisle (Pennsylvania) | 54.11 mi (87.09 km) |
