| Hennef to Cloverly (Maryland) | 3,971.62 mi (6,391.71 km) |
| Hennef to Clovis (California) | 5,581.98 mi (8,983.33 km) |
| Hennef to Clovis (New Mexico) | 5,194.67 mi (8,360.01 km) |
| Hennef to Clute (Texas) | 5,199.47 mi (8,367.74 km) |
| Hennef to Coachella (California) | 5,662.45 mi (9,112.83 km) |
| Hennef to Coalinga (California) | 5,640.90 mi (9,078.15 km) |
| Hennef to Coamo (Puerto Rico) | 4,547.63 mi (7,318.71 km) |
| Hennef to Coatesville (Pennsylvania) | 3,884.35 mi (6,251.26 km) |
| Hennef to Cockeysville (Maryland) | 3,939.67 mi (6,340.28 km) |
| Hennef to Cocoa (Florida) | 4,644.42 mi (7,474.47 km) |
| Hennef to Cocoa Beach (Florida) | 4,641.06 mi (7,469.07 km) |
| Hennef to Coconut Creek (Florida) | 4,726.15 mi (7,606.01 km) |
| Hennef to Coeur d'Alene (Idaho) | 4,867.44 mi (7,833.39 km) |
| Hennef to Cohoes (New York) | 3,676.81 mi (5,917.25 km) |
| Hennef to Cold Springs (Nevada) | 5,420.21 mi (8,722.99 km) |
