| Knokke-Heist to Castle Rock (Colorado) | 4,823.72 mi (7,763.03 km) |
| Knokke-Heist to Castro Valley (California) | 5,454.78 mi (8,778.62 km) |
| Knokke-Heist to Catalina Foothills (Arizona) | 5,416.70 mi (8,717.34 km) |
| Knokke-Heist to Cataño (Puerto Rico) | 4,347.61 mi (6,996.80 km) |
| Knokke-Heist to Cathedral City (California) | 5,512.67 mi (8,871.79 km) |
| Knokke-Heist to Catonsville (Maryland) | 3,778.89 mi (6,081.54 km) |
| Knokke-Heist to Cave Spring (Virginia) | 4,004.79 mi (6,445.09 km) |
| Knokke-Heist to Cayce (South Carolina) | 4,203.63 mi (6,765.08 km) |
| Knokke-Heist to Cayey (Puerto Rico) | 4,365.24 mi (7,025.18 km) |
| Knokke-Heist to Cedar City (Utah) | 5,186.70 mi (8,347.18 km) |
| Knokke-Heist to Cedar Falls (Iowa) | 4,228.75 mi (6,805.52 km) |
| Knokke-Heist to Cedar Hill (Texas) | 4,900.17 mi (7,886.07 km) |
| Knokke-Heist to Cedar Lake (Indiana) | 4,099.01 mi (6,596.72 km) |
| Knokke-Heist to Cedar Mill (Oregon) | 5,013.99 mi (8,069.23 km) |
| Knokke-Heist to Cedar Park (Texas) | 5,042.13 mi (8,114.52 km) |
