| Formia to Clarkston (Georgia) | 5,088.11 mi (8,188.52 km) |
| Formia to Clarksville (Indiana) | 4,958.82 mi (7,980.46 km) |
| Formia to Clarksville (Tennessee) | 5,102.30 mi (8,211.36 km) |
| Formia to Clawson (Michigan) | 4,672.53 mi (7,519.71 km) |
| Formia to Clay (Alabama) | 5,198.10 mi (8,365.53 km) |
| Formia to Clayton (California) | 6,288.14 mi (10,119.79 km) |
| Formia to Clayton (Missouri) | 5,134.49 mi (8,263.16 km) |
| Formia to Clayton (North Carolina) | 4,750.00 mi (7,644.38 km) |
| Formia to Clayton (Ohio) | 4,832.18 mi (7,776.64 km) |
| Formia to Clearfield (Utah) | 5,807.63 mi (9,346.48 km) |
| Formia to Clearlake (California) | 6,248.07 mi (10,055.29 km) |
| Formia to Clearwater (Florida) | 5,276.53 mi (8,491.75 km) |
| Formia to Cleburne (Texas) | 5,721.77 mi (9,208.30 km) |
| Formia to Clemmons (North Carolina) | 4,821.66 mi (7,759.71 km) |
| Formia to Clemson (South Carolina) | 4,986.80 mi (8,025.48 km) |
