| Castel Gandolfo to Dendermonde | 758.99 mi (1,221.47 km) |
| Castel Gandolfo to Dessel | 746.14 mi (1,200.79 km) |
| Castel Gandolfo to Destelbergen | 767.59 mi (1,235.32 km) |
| Castel Gandolfo to Deurne | 760.91 mi (1,224.56 km) |
| Castel Gandolfo to Diepenbeek | 720.10 mi (1,158.89 km) |
| Castel Gandolfo to Diest | 733.06 mi (1,179.75 km) |
| Castel Gandolfo to Diksmuide | 791.72 mi (1,274.15 km) |
| Castel Gandolfo to Dilbeek | 743.95 mi (1,197.27 km) |
| Castel Gandolfo to Dinant | 695.08 mi (1,118.63 km) |
| Castel Gandolfo to Dison | 693.17 mi (1,115.56 km) |
| Castel Gandolfo to Dour | 732.43 mi (1,178.73 km) |
| Castel Gandolfo to Drongen | 771.06 mi (1,240.91 km) |
| Castel Gandolfo to Duffel | 752.45 mi (1,210.94 km) |
| Castel Gandolfo to Durbuy | 686.69 mi (1,105.12 km) |
| Castel Gandolfo to Ecaussinnes-Lalaing | 730.82 mi (1,176.14 km) |
