| Hemel Hempstead to Dover (New Jersey) | 3,456.96 mi (5,563.44 km) |
| Hemel Hempstead to Dover (Ohio) | 3,750.16 mi (6,035.30 km) |
| Hemel Hempstead to Downers Grove (Illinois) | 3,945.34 mi (6,349.41 km) |
| Hemel Hempstead to Downey (California) | 5,421.21 mi (8,724.60 km) |
| Hemel Hempstead to Dranesville (Virginia) | 3,654.91 mi (5,882.01 km) |
| Hemel Hempstead to Draper (Utah) | 4,852.23 mi (7,808.91 km) |
| Hemel Hempstead to Drexel Heights (Arizona) | 5,284.93 mi (8,505.28 km) |
| Hemel Hempstead to Drexel Hill (Pennsylvania) | 3,528.28 mi (5,678.22 km) |
| Hemel Hempstead to Duarte (California) | 5,402.65 mi (8,694.72 km) |
| Hemel Hempstead to Dublin (California) | 5,319.60 mi (8,561.07 km) |
| Hemel Hempstead to Dublin (Georgia) | 4,187.18 mi (6,738.62 km) |
| Hemel Hempstead to Dublin (Ohio) | 3,835.04 mi (6,171.90 km) |
| Hemel Hempstead to Dubuque (Iowa) | 4,013.20 mi (6,458.62 km) |
| Hemel Hempstead to Duluth (Georgia) | 4,165.17 mi (6,703.19 km) |
| Hemel Hempstead to Duluth (Minnesota) | 3,865.82 mi (6,221.43 km) |
