| Key Biscayne to Cadiz | 4,329.42 mi (6,967.53 km) |
| Key Biscayne to Calafell | 4,662.33 mi (7,503.29 km) |
| Key Biscayne to Calahorra | 4,467.19 mi (7,189.25 km) |
| Key Biscayne to Calasparra | 4,546.79 mi (7,317.36 km) |
| Key Biscayne to Calatayud | 4,498.56 mi (7,239.73 km) |
| Key Biscayne to Caldas de Montbuy | 4,684.40 mi (7,538.82 km) |
| Key Biscayne to Caldas de Reyes | 4,129.02 mi (6,645.01 km) |
| Key Biscayne to Calella | 4,709.43 mi (7,579.09 km) |
| Key Biscayne to Callosa de Segura | 4,591.78 mi (7,389.75 km) |
| Key Biscayne to Calpe | 4,630.64 mi (7,452.29 km) |
| Key Biscayne to Calvia | 4,740.33 mi (7,628.82 km) |
| Key Biscayne to Camas | 4,330.36 mi (6,969.05 km) |
| Key Biscayne to Cambados | 4,121.90 mi (6,633.56 km) |
| Key Biscayne to Cambre | 4,137.53 mi (6,658.72 km) |
| Key Biscayne to Cambrils | 4,638.93 mi (7,465.64 km) |
