| Knokke-Heist to Caguas (Puerto Rico) | 4,353.80 mi (7,006.76 km) |
| Knokke-Heist to Cahokia (Illinois) | 4,338.28 mi (6,981.79 km) |
| Knokke-Heist to Calabasas (California) | 5,563.95 mi (8,954.32 km) |
| Knokke-Heist to Caldwell (Idaho) | 4,956.84 mi (7,977.27 km) |
| Knokke-Heist to Caledonia (Wisconsin) | 4,047.77 mi (6,514.26 km) |
| Knokke-Heist to Calera (Alabama) | 4,474.35 mi (7,200.77 km) |
| Knokke-Heist to Calexico (California) | 5,547.94 mi (8,928.54 km) |
| Knokke-Heist to Calhoun (Georgia) | 4,334.43 mi (6,975.58 km) |
| Knokke-Heist to California (Maryland) | 3,813.00 mi (6,136.43 km) |
| Knokke-Heist to California City (California) | 5,480.16 mi (8,819.47 km) |
| Knokke-Heist to Callaway (Florida) | 4,576.62 mi (7,365.36 km) |
| Knokke-Heist to Calumet City (Illinois) | 4,091.63 mi (6,584.85 km) |
| Knokke-Heist to Calverton (Maryland) | 3,796.62 mi (6,110.07 km) |
| Knokke-Heist to Camano (Washington) | 4,850.79 mi (7,806.59 km) |
| Knokke-Heist to Camarillo (California) | 5,570.10 mi (8,964.21 km) |
