| Castagneto Carducci to Castle Rock (Colorado) | 5,454.75 mi (8,778.57 km) |
| Castagneto Carducci to Castro Valley (California) | 6,109.89 mi (9,832.92 km) |
| Castagneto Carducci to Catalina Foothills (Arizona) | 6,045.54 mi (9,729.35 km) |
| Castagneto Carducci to Cataño (Puerto Rico) | 4,696.54 mi (7,558.36 km) |
| Castagneto Carducci to Cathedral City (California) | 6,155.88 mi (9,906.93 km) |
| Castagneto Carducci to Catonsville (Maryland) | 4,329.84 mi (6,968.21 km) |
| Castagneto Carducci to Cave Spring (Virginia) | 4,555.95 mi (7,332.09 km) |
| Castagneto Carducci to Cayce (South Carolina) | 4,740.66 mi (7,629.36 km) |
| Castagneto Carducci to Cayey (Puerto Rico) | 4,711.84 mi (7,582.98 km) |
| Castagneto Carducci to Cedar City (Utah) | 5,829.93 mi (9,382.36 km) |
| Castagneto Carducci to Cedar Falls (Iowa) | 4,841.08 mi (7,790.97 km) |
| Castagneto Carducci to Cedar Hill (Texas) | 5,489.92 mi (8,835.17 km) |
| Castagneto Carducci to Cedar Lake (Indiana) | 4,694.10 mi (7,554.42 km) |
| Castagneto Carducci to Cedar Mill (Oregon) | 5,673.48 mi (9,130.59 km) |
| Castagneto Carducci to Cedar Park (Texas) | 5,627.24 mi (9,056.16 km) |
