| Key Largo to Cividale del Friuli | 5,161.53 mi (8,306.68 km) |
| Key Largo to Civita Castellana | 5,206.91 mi (8,379.70 km) |
| Key Largo to Civitanova Marche | 5,244.51 mi (8,440.22 km) |
| Key Largo to Civitavecchia | 5,182.47 mi (8,340.39 km) |
| Key Largo to Civitella in Val di Chiana | 5,146.92 mi (8,283.17 km) |
| Key Largo to Clusone | 5,008.81 mi (8,060.90 km) |
| Key Largo to Coccaglio | 5,017.08 mi (8,074.20 km) |
| Key Largo to Codigoro | 5,131.98 mi (8,259.13 km) |
| Key Largo to Codogno | 5,013.28 mi (8,068.10 km) |
| Key Largo to Codroipo | 5,144.42 mi (8,279.15 km) |
| Key Largo to Cogoleto | 4,980.51 mi (8,015.36 km) |
| Key Largo to Colle di Val d'Elsa | 5,119.79 mi (8,239.51 km) |
| Key Largo to Colle Salvetti | 5,084.47 mi (8,182.66 km) |
| Key Largo to Collecchio | 5,046.03 mi (8,120.80 km) |
| Key Largo to Colleferro | 5,249.95 mi (8,448.98 km) |
