| Castagneto Carducci to Caguas (Puerto Rico) | 4,700.40 mi (7,564.57 km) |
| Castagneto Carducci to Cahokia (Illinois) | 4,929.65 mi (7,933.50 km) |
| Castagneto Carducci to Calabasas (California) | 6,211.26 mi (9,996.05 km) |
| Castagneto Carducci to Caldwell (Idaho) | 5,611.76 mi (9,031.26 km) |
| Castagneto Carducci to Caledonia (Wisconsin) | 4,649.89 mi (7,483.28 km) |
| Castagneto Carducci to Calera (Alabama) | 5,029.75 mi (8,094.61 km) |
| Castagneto Carducci to Calexico (California) | 6,187.54 mi (9,957.88 km) |
| Castagneto Carducci to Calhoun (Georgia) | 4,889.65 mi (7,869.12 km) |
| Castagneto Carducci to California (Maryland) | 4,357.33 mi (7,012.45 km) |
| Castagneto Carducci to California City (California) | 6,127.51 mi (9,861.28 km) |
| Castagneto Carducci to Callaway (Florida) | 5,112.22 mi (8,227.32 km) |
| Castagneto Carducci to Calumet City (Illinois) | 4,688.05 mi (7,544.68 km) |
| Castagneto Carducci to Calverton (Maryland) | 4,347.10 mi (6,995.98 km) |
| Castagneto Carducci to Camano (Washington) | 5,510.72 mi (8,868.64 km) |
| Castagneto Carducci to Camarillo (California) | 6,218.07 mi (10,007.01 km) |
