| Knightdale to Castrovillari | 4,914.39 mi (7,908.95 km) |
| Knightdale to Catania | 4,946.61 mi (7,960.80 km) |
| Knightdale to Catanzaro | 4,965.74 mi (7,991.59 km) |
| Knightdale to Cattolica | 4,617.41 mi (7,431.01 km) |
| Knightdale to Cava de' Tirreni | 4,815.21 mi (7,749.33 km) |
| Knightdale to Cavallino | 4,986.15 mi (8,024.43 km) |
| Knightdale to Cavarzere | 4,551.43 mi (7,324.81 km) |
| Knightdale to Cave | 4,697.30 mi (7,559.58 km) |
| Knightdale to Cavriago | 4,497.57 mi (7,238.13 km) |
| Knightdale to Cavriglia | 4,576.76 mi (7,365.59 km) |
| Knightdale to Cazzago San Martino | 4,448.43 mi (7,159.05 km) |
| Knightdale to Ceccano | 4,723.74 mi (7,602.12 km) |
| Knightdale to Cecina | 4,540.03 mi (7,306.48 km) |
| Knightdale to Cefalu | 4,877.37 mi (7,849.36 km) |
| Knightdale to Ceglie Messapico | 4,942.75 mi (7,954.58 km) |
