| Frederick to Cividale del Friuli | 4,371.64 mi (7,035.47 km) |
| Frederick to Civita Castellana | 4,462.23 mi (7,181.26 km) |
| Frederick to Civitanova Marche | 4,483.43 mi (7,215.38 km) |
| Frederick to Civitavecchia | 4,442.50 mi (7,149.51 km) |
| Frederick to Civitella in Val di Chiana | 4,392.40 mi (7,068.88 km) |
| Frederick to Clusone | 4,233.09 mi (6,812.49 km) |
| Frederick to Coccaglio | 4,244.82 mi (6,831.38 km) |
| Frederick to Codigoro | 4,360.30 mi (7,017.22 km) |
| Frederick to Codogno | 4,246.49 mi (6,834.07 km) |
| Frederick to Codroipo | 4,357.55 mi (7,012.79 km) |
| Frederick to Cogoleto | 4,226.25 mi (6,801.49 km) |
| Frederick to Colle di Val d'Elsa | 4,367.69 mi (7,029.12 km) |
| Frederick to Colle Salvetti | 4,332.56 mi (6,972.59 km) |
| Frederick to Collecchio | 4,282.07 mi (6,891.32 km) |
| Frederick to Colleferro | 4,509.09 mi (7,256.69 km) |
