| Portogruaro to Clarkston (Georgia) | 4,897.66 mi (7,882.02 km) |
| Portogruaro to Clarksville (Indiana) | 4,749.49 mi (7,643.56 km) |
| Portogruaro to Clarksville (Tennessee) | 4,895.14 mi (7,877.97 km) |
| Portogruaro to Clawson (Michigan) | 4,454.50 mi (7,168.82 km) |
| Portogruaro to Clay (Alabama) | 5,002.13 mi (8,050.16 km) |
| Portogruaro to Clayton (California) | 6,007.01 mi (9,667.34 km) |
| Portogruaro to Clayton (Missouri) | 4,914.14 mi (7,908.55 km) |
| Portogruaro to Clayton (North Carolina) | 4,567.14 mi (7,350.11 km) |
| Portogruaro to Clayton (Ohio) | 4,620.79 mi (7,436.45 km) |
| Portogruaro to Clearfield (Utah) | 5,538.75 mi (8,913.76 km) |
| Portogruaro to Clearlake (California) | 5,964.53 mi (9,598.99 km) |
| Portogruaro to Clearwater (Florida) | 5,110.62 mi (8,224.75 km) |
| Portogruaro to Cleburne (Texas) | 5,503.15 mi (8,856.46 km) |
| Portogruaro to Clemmons (North Carolina) | 4,632.73 mi (7,455.67 km) |
| Portogruaro to Clemson (South Carolina) | 4,796.84 mi (7,719.77 km) |
