| Castelli Calepio to Carson (California) | 6,062.99 mi (9,757.45 km) |
| Castelli Calepio to Carson City (Nevada) | 5,800.54 mi (9,335.06 km) |
| Castelli Calepio to Carteret (New Jersey) | 4,056.30 mi (6,527.98 km) |
| Castelli Calepio to Cartersville (Georgia) | 4,785.79 mi (7,701.98 km) |
| Castelli Calepio to Carthage (Missouri) | 5,033.80 mi (8,101.11 km) |
| Castelli Calepio to Cary (Illinois) | 4,559.44 mi (7,337.70 km) |
| Castelli Calepio to Cary (North Carolina) | 4,455.83 mi (7,170.97 km) |
| Castelli Calepio to Casa de Oro-Mount Helix (California) | 6,083.43 mi (9,790.34 km) |
| Castelli Calepio to Casa Grande (Arizona) | 5,900.47 mi (9,495.90 km) |
| Castelli Calepio to Casas Adobes (Arizona) | 5,905.50 mi (9,503.98 km) |
| Castelli Calepio to Cascades (Virginia) | 4,254.28 mi (6,846.60 km) |
| Castelli Calepio to Casper (Wyoming) | 5,178.92 mi (8,334.66 km) |
| Castelli Calepio to Casselberry (Florida) | 4,887.86 mi (7,866.25 km) |
| Castelli Calepio to Castaic (California) | 6,037.57 mi (9,716.53 km) |
| Castelli Calepio to Castle Pines (Colorado) | 5,307.10 mi (8,540.96 km) |
