| Fort Madison to Cortona | 4,933.92 mi (7,940.38 km) |
| Fort Madison to Cosenza | 5,280.33 mi (8,497.87 km) |
| Fort Madison to Cossato | 4,688.01 mi (7,544.62 km) |
| Fort Madison to Costa Volpino | 4,752.05 mi (7,647.68 km) |
| Fort Madison to Creazzo | 4,817.56 mi (7,753.12 km) |
| Fort Madison to Crema | 4,755.29 mi (7,652.89 km) |
| Fort Madison to Cremona | 4,778.59 mi (7,690.40 km) |
| Fort Madison to Crevalcore | 4,839.44 mi (7,788.32 km) |
| Fort Madison to Crispiano | 5,258.87 mi (8,463.33 km) |
| Fort Madison to Crosia | 5,288.49 mi (8,510.99 km) |
| Fort Madison to Crotone | 5,324.79 mi (8,569.42 km) |
| Fort Madison to Cuneo | 4,711.83 mi (7,582.96 km) |
| Fort Madison to Cuorgne | 4,674.92 mi (7,523.56 km) |
| Fort Madison to Cusano Milanino | 4,728.30 mi (7,609.46 km) |
| Fort Madison to Cutro | 5,321.82 mi (8,564.64 km) |
