| Castricum to Caño Martin Peña (Puerto Rico) | 4,408.19 mi (7,094.30 km) |
| Castricum to Cañon City (Colorado) | 4,880.43 mi (7,854.29 km) |
| Castricum to Canóvanas (Puerto Rico) | 4,405.19 mi (7,089.46 km) |
| Castricum to Canton (Georgia) | 4,352.10 mi (7,004.04 km) |
| Castricum to Canton (Illinois) | 4,243.91 mi (6,829.92 km) |
| Castricum to Canton (Mississippi) | 4,650.73 mi (7,484.63 km) |
| Castricum to Canton (Ohio) | 3,909.87 mi (6,292.32 km) |
| Castricum to Canyon (Texas) | 4,957.90 mi (7,978.97 km) |
| Castricum to Canyon Lake (California) | 5,531.00 mi (8,901.28 km) |
| Castricum to Canyon Lake (Texas) | 5,105.25 mi (8,216.11 km) |
| Castricum to Cape Coral (Florida) | 4,642.45 mi (7,471.30 km) |
| Castricum to Cape Girardeau (Missouri) | 4,390.24 mi (7,065.40 km) |
| Castricum to Carbondale (Illinois) | 4,356.87 mi (7,011.71 km) |
| Castricum to Carlisle (Pennsylvania) | 3,778.23 mi (6,080.48 km) |
| Castricum to Carlsbad (California) | 5,564.84 mi (8,955.74 km) |
