| Portogruaro to Cicero (Illinois) | 4,664.05 mi (7,506.07 km) |
| Portogruaro to Cimarron Hills (Colorado) | 5,426.72 mi (8,733.45 km) |
| Portogruaro to Cincinnati (Ohio) | 4,661.09 mi (7,501.29 km) |
| Portogruaro to Cinco Ranch (Texas) | 5,572.43 mi (8,967.96 km) |
| Portogruaro to Circleville (Ohio) | 4,576.67 mi (7,365.45 km) |
| Portogruaro to Citrus (California) | 6,118.17 mi (9,846.25 km) |
| Portogruaro to Citrus Heights (California) | 5,944.47 mi (9,566.70 km) |
| Portogruaro to Citrus Park (Florida) | 5,097.34 mi (8,203.38 km) |
| Portogruaro to Claiborne (Louisiana) | 5,287.40 mi (8,509.25 km) |
| Portogruaro to Claremont (California) | 6,112.33 mi (9,836.85 km) |
| Portogruaro to Claremont (New Hampshire) | 3,983.99 mi (6,411.61 km) |
| Portogruaro to Claremore (Oklahoma) | 5,231.68 mi (8,419.57 km) |
| Portogruaro to Clarksburg (Maryland) | 4,360.46 mi (7,017.48 km) |
| Portogruaro to Clarksburg (West Virginia) | 4,484.62 mi (7,217.29 km) |
| Portogruaro to Clarksdale (Mississippi) | 5,139.90 mi (8,271.87 km) |
