| Hennef to Coldwater (Michigan) | 4,149.47 mi (6,677.93 km) |
| Hennef to Colesville (Maryland) | 3,973.22 mi (6,394.28 km) |
| Hennef to College (Alaska) | 4,335.65 mi (6,977.55 km) |
| Hennef to College Park (Georgia) | 4,532.52 mi (7,294.39 km) |
| Hennef to College Park (Maryland) | 3,974.07 mi (6,395.65 km) |
| Hennef to College Station (Texas) | 5,150.82 mi (8,289.44 km) |
| Hennef to Collegedale (Tennessee) | 4,485.44 mi (7,218.62 km) |
| Hennef to Colleyville (Texas) | 5,060.18 mi (8,143.58 km) |
| Hennef to Collierville (Tennessee) | 4,666.79 mi (7,510.48 km) |
| Hennef to Collinsville (Illinois) | 4,495.77 mi (7,235.24 km) |
| Hennef to Colonia (New Jersey) | 3,796.78 mi (6,110.33 km) |
| Hennef to Colonial Heights (Virginia) | 4,073.12 mi (6,555.05 km) |
| Hennef to Colonial Park (Pennsylvania) | 3,909.44 mi (6,291.63 km) |
| Hennef to Colorado Springs (Colorado) | 5,006.30 mi (8,056.86 km) |
| Hennef to Colton (California) | 5,677.04 mi (9,136.32 km) |
