| Boulogne-sur-Mer to Dendermonde | 110.39 mi (177.66 km) |
| Boulogne-sur-Mer to Dessel | 156.30 mi (251.54 km) |
| Boulogne-sur-Mer to Destelbergen | 97.83 mi (157.45 km) |
| Boulogne-sur-Mer to Deurne | 128.58 mi (206.93 km) |
| Boulogne-sur-Mer to Diepenbeek | 166.46 mi (267.88 km) |
| Boulogne-sur-Mer to Diest | 150.94 mi (242.92 km) |
| Boulogne-sur-Mer to Diksmuide | 58.55 mi (94.23 km) |
| Boulogne-sur-Mer to Dilbeek | 115.36 mi (185.66 km) |
| Boulogne-sur-Mer to Dinant | 148.55 mi (239.07 km) |
| Boulogne-sur-Mer to Dison | 185.59 mi (298.68 km) |
| Boulogne-sur-Mer to Dour | 97.74 mi (157.29 km) |
| Boulogne-sur-Mer to Drongen | 92.19 mi (148.36 km) |
| Boulogne-sur-Mer to Duffel | 129.02 mi (207.64 km) |
| Boulogne-sur-Mer to Durbuy | 170.64 mi (274.62 km) |
| Boulogne-sur-Mer to Ecaussinnes-Lalaing | 113.07 mi (181.97 km) |
