| Hemel Hempstead to Curtea de Arges | 1,232.14 mi (1,982.93 km) |
| Hemel Hempstead to Dabuleni | 1,257.68 mi (2,024.03 km) |
| Hemel Hempstead to Darabani | 1,220.01 mi (1,963.41 km) |
| Hemel Hempstead to Darmanesti | 1,267.16 mi (2,039.30 km) |
| Hemel Hempstead to Dej | 1,131.65 mi (1,821.21 km) |
| Hemel Hempstead to Deva | 1,132.61 mi (1,822.75 km) |
| Hemel Hempstead to Dolhasca | 1,241.20 mi (1,997.52 km) |
| Hemel Hempstead to Dorohoi | 1,217.81 mi (1,959.87 km) |
| Hemel Hempstead to Draganesti-Olt | 1,261.51 mi (2,030.21 km) |
| Hemel Hempstead to Dragasani | 1,231.94 mi (1,982.62 km) |
| Hemel Hempstead to Drobeta-Turnu Severin | 1,166.35 mi (1,877.06 km) |
| Hemel Hempstead to Fagaras | 1,220.33 mi (1,963.93 km) |
| Hemel Hempstead to Falticeni | 1,227.16 mi (1,974.93 km) |
| Hemel Hempstead to Fetesti | 1,390.02 mi (2,237.03 km) |
| Hemel Hempstead to Filiasi | 1,211.03 mi (1,948.97 km) |
