| Castagneto Carducci to Clarkston (Georgia) | 4,888.91 mi (7,867.95 km) |
| Castagneto Carducci to Clarksville (Indiana) | 4,757.33 mi (7,656.17 km) |
| Castagneto Carducci to Clarksville (Tennessee) | 4,901.03 mi (7,887.45 km) |
| Castagneto Carducci to Clawson (Michigan) | 4,470.34 mi (7,194.32 km) |
| Castagneto Carducci to Clay (Alabama) | 4,998.15 mi (8,043.74 km) |
| Castagneto Carducci to Clayton (California) | 6,092.51 mi (9,804.94 km) |
| Castagneto Carducci to Clayton (Missouri) | 4,932.22 mi (7,937.64 km) |
| Castagneto Carducci to Clayton (North Carolina) | 4,551.89 mi (7,325.56 km) |
| Castagneto Carducci to Clayton (Ohio) | 4,630.48 mi (7,452.04 km) |
| Castagneto Carducci to Clearfield (Utah) | 5,608.51 mi (9,026.02 km) |
| Castagneto Carducci to Clearlake (California) | 6,053.39 mi (9,741.99 km) |
| Castagneto Carducci to Clearwater (Florida) | 5,081.82 mi (8,178.39 km) |
| Castagneto Carducci to Cleburne (Texas) | 5,519.66 mi (8,883.03 km) |
| Castagneto Carducci to Clemmons (North Carolina) | 4,622.61 mi (7,439.37 km) |
| Castagneto Carducci to Clemson (South Carolina) | 4,787.64 mi (7,704.97 km) |
