| Hennef to Dover (New Jersey) | 3,793.52 mi (6,105.08 km) |
| Hennef to Dover (Ohio) | 4,082.01 mi (6,569.36 km) |
| Hennef to Downers Grove (Illinois) | 4,268.82 mi (6,870.00 km) |
| Hennef to Downey (California) | 5,707.98 mi (9,186.11 km) |
| Hennef to Dranesville (Virginia) | 3,991.52 mi (6,423.73 km) |
| Hennef to Draper (Utah) | 5,140.33 mi (8,272.57 km) |
| Hennef to Drexel Heights (Arizona) | 5,589.59 mi (8,995.57 km) |
| Hennef to Drexel Hill (Pennsylvania) | 3,865.29 mi (6,220.58 km) |
| Hennef to Duarte (California) | 5,689.43 mi (9,156.26 km) |
| Hennef to Dublin (California) | 5,590.32 mi (8,996.75 km) |
| Hennef to Dublin (Georgia) | 4,525.48 mi (7,283.06 km) |
| Hennef to Dublin (Ohio) | 4,165.96 mi (6,704.46 km) |
| Hennef to Dubuque (Iowa) | 4,332.26 mi (6,972.09 km) |
| Hennef to Duluth (Georgia) | 4,501.63 mi (7,244.68 km) |
| Hennef to Duluth (Minnesota) | 4,174.52 mi (6,718.23 km) |
