| Knightdale to Celano | 4,716.26 mi (7,590.09 km) |
| Knightdale to Cento | 4,529.40 mi (7,289.36 km) |
| Knightdale to Cepagatti | 4,729.50 mi (7,611.39 km) |
| Knightdale to Ceprano | 4,732.57 mi (7,616.34 km) |
| Knightdale to Cercola | 4,793.59 mi (7,714.54 km) |
| Knightdale to Cerea | 4,511.91 mi (7,261.22 km) |
| Knightdale to Cerese | 4,496.23 mi (7,235.99 km) |
| Knightdale to Cerignola | 4,849.27 mi (7,804.14 km) |
| Knightdale to Cermenate | 4,403.85 mi (7,087.30 km) |
| Knightdale to Cernusco sul Naviglio | 4,420.20 mi (7,113.62 km) |
| Knightdale to Cerreto Guidi | 4,542.18 mi (7,309.93 km) |
| Knightdale to Cerro Maggiore | 4,400.98 mi (7,082.70 km) |
| Knightdale to Certaldo | 4,556.12 mi (7,332.36 km) |
| Knightdale to Cerveteri | 4,653.64 mi (7,489.31 km) |
| Knightdale to Cervia | 4,591.42 mi (7,389.17 km) |
