| Castricum to Clermont (Florida) | 4,533.56 mi (7,296.07 km) |
| Castricum to Cleveland (Mississippi) | 4,617.56 mi (7,431.24 km) |
| Castricum to Cleveland (Ohio) | 3,890.05 mi (6,260.43 km) |
| Castricum to Cleveland (Tennessee) | 4,319.77 mi (6,952.00 km) |
| Castricum to Cleveland Heights (Ohio) | 3,883.99 mi (6,250.67 km) |
| Castricum to Cliffside Park (New Jersey) | 3,623.73 mi (5,831.84 km) |
| Castricum to Clifton (Colorado) | 4,949.70 mi (7,965.77 km) |
| Castricum to Clifton (New Jersey) | 3,628.54 mi (5,839.57 km) |
| Castricum to Clinton (Iowa) | 4,187.33 mi (6,738.85 km) |
| Castricum to Clinton (Maryland) | 3,834.68 mi (6,171.31 km) |
| Castricum to Clinton (Mississippi) | 4,675.23 mi (7,524.05 km) |
| Castricum to Clinton (Utah) | 4,944.37 mi (7,957.19 km) |
| Castricum to Clive (Iowa) | 4,324.73 mi (6,959.98 km) |
| Castricum to Cloquet (Minnesota) | 4,025.55 mi (6,478.50 km) |
| Castricum to Cloverleaf (Texas) | 4,994.67 mi (8,038.15 km) |
