| Castle Rock to Dendermonde | 4,864.50 mi (7,828.66 km) |
| Castle Rock to Dessel | 4,889.80 mi (7,869.37 km) |
| Castle Rock to Destelbergen | 4,853.65 mi (7,811.19 km) |
| Castle Rock to Deurne | 4,868.33 mi (7,834.82 km) |
| Castle Rock to Diepenbeek | 4,914.26 mi (7,908.73 km) |
| Castle Rock to Diest | 4,898.59 mi (7,883.52 km) |
| Castle Rock to Diksmuide | 4,822.69 mi (7,761.37 km) |
| Castle Rock to Dilbeek | 4,878.30 mi (7,850.86 km) |
| Castle Rock to Dinant | 4,925.79 mi (7,927.29 km) |
| Castle Rock to Dison | 4,941.65 mi (7,952.81 km) |
| Castle Rock to Dour | 4,881.34 mi (7,855.76 km) |
| Castle Rock to Drongen | 4,849.14 mi (7,803.94 km) |
| Castle Rock to Duffel | 4,875.60 mi (7,846.53 km) |
| Castle Rock to Durbuy | 4,940.24 mi (7,950.54 km) |
| Castle Rock to Ecaussinnes-Lalaing | 4,887.69 mi (7,865.98 km) |
