| Hennef to Cottage Grove (Oregon) | 5,255.73 mi (8,458.27 km) |
| Hennef to Cottage Lake (Washington) | 4,996.20 mi (8,040.61 km) |
| Hennef to Cottonwood (Arizona) | 5,473.45 mi (8,808.67 km) |
| Hennef to Cottonwood Heights (Utah) | 5,132.27 mi (8,259.59 km) |
| Hennef to Council Bluffs (Iowa) | 4,577.81 mi (7,367.28 km) |
| Hennef to Country Club (Florida) | 4,748.69 mi (7,642.28 km) |
| Hennef to Country Club Hills (Illinois) | 4,269.22 mi (6,870.65 km) |
| Hennef to Country Walk (Florida) | 4,769.61 mi (7,675.94 km) |
| Hennef to Covina (California) | 5,691.56 mi (9,159.68 km) |
| Hennef to Covington (Georgia) | 4,509.38 mi (7,257.15 km) |
| Hennef to Covington (Kentucky) | 4,270.20 mi (6,872.23 km) |
| Hennef to Covington (Louisiana) | 4,916.94 mi (7,913.05 km) |
| Hennef to Covington (Washington) | 5,019.44 mi (8,078.00 km) |
| Hennef to Cranston (Rhode Island) | 3,631.67 mi (5,844.61 km) |
| Hennef to Crawfordsville (Indiana) | 4,312.03 mi (6,939.54 km) |
