| Gardelegen to Dendermonde | 328.19 mi (528.17 km) |
| Gardelegen to Dessel | 282.08 mi (453.97 km) |
| Gardelegen to Destelbergen | 339.96 mi (547.12 km) |
| Gardelegen to Deurne | 308.84 mi (497.04 km) |
| Gardelegen to Diepenbeek | 279.06 mi (449.10 km) |
| Gardelegen to Diest | 291.25 mi (468.73 km) |
| Gardelegen to Diksmuide | 378.51 mi (609.16 km) |
| Gardelegen to Dilbeek | 327.42 mi (526.93 km) |
| Gardelegen to Dinant | 319.69 mi (514.49 km) |
| Gardelegen to Dison | 272.04 mi (437.80 km) |
| Gardelegen to Dour | 358.92 mi (577.63 km) |
| Gardelegen to Drongen | 345.39 mi (555.86 km) |
| Gardelegen to Duffel | 309.65 mi (498.34 km) |
| Gardelegen to Durbuy | 296.40 mi (477.00 km) |
| Gardelegen to Ecaussinnes-Lalaing | 337.87 mi (543.75 km) |
