| Trecastagni to Carson (California) | 6,661.43 mi (10,720.53 km) |
| Trecastagni to Carson City (Nevada) | 6,407.30 mi (10,311.55 km) |
| Trecastagni to Carteret (New Jersey) | 4,570.62 mi (7,355.70 km) |
| Trecastagni to Cartersville (Georgia) | 5,298.60 mi (8,527.27 km) |
| Trecastagni to Carthage (Missouri) | 5,586.92 mi (8,991.28 km) |
| Trecastagni to Cary (Illinois) | 5,116.30 mi (8,233.89 km) |
| Trecastagni to Cary (North Carolina) | 4,957.50 mi (7,978.33 km) |
| Trecastagni to Casa de Oro-Mount Helix (California) | 6,677.97 mi (10,747.15 km) |
| Trecastagni to Casa Grande (Arizona) | 6,484.57 mi (10,435.90 km) |
| Trecastagni to Casas Adobes (Arizona) | 6,486.69 mi (10,439.32 km) |
| Trecastagni to Cascades (Virginia) | 4,769.06 mi (7,675.05 km) |
| Trecastagni to Casper (Wyoming) | 5,772.47 mi (9,289.90 km) |
| Trecastagni to Casselberry (Florida) | 5,359.64 mi (8,625.51 km) |
| Trecastagni to Castaic (California) | 6,637.49 mi (10,682.01 km) |
| Trecastagni to Castle Pines (Colorado) | 5,891.06 mi (9,480.74 km) |
