| Cities | Distance |
|---|---|
| Hertford to Dendermonde | 187.55 mi (301.83 km) |
| Hertford to Dessel | 226.65 mi (364.75 km) |
| Hertford to Destelbergen | 174.81 mi (281.33 km) |
| Hertford to Deurne | 199.15 mi (320.50 km) |
| Hertford to Diepenbeek | 244.88 mi (394.09 km) |
| Hertford to Diest | 228.08 mi (367.06 km) |
| Hertford to Diksmuide | 137.38 mi (221.09 km) |
| Hertford to Dilbeek | 198.34 mi (319.20 km) |
| Hertford to Dinant | 241.31 mi (388.35 km) |
| Hertford to Dison | 269.13 mi (433.13 km) |
| Hertford to Dour | 193.26 mi (311.02 km) |
| Hertford to Drongen | 169.34 mi (272.52 km) |
| Hertford to Duffel | 203.56 mi (327.59 km) |
| Hertford to Durbuy | 260.05 mi (418.51 km) |
| Hertford to Ecaussinnes-Lalaing | 203.12 mi (326.89 km) |