| Karlovo to Dendermonde | 1,131.71 mi (1,821.31 km) |
| Karlovo to Dessel | 1,096.99 mi (1,765.44 km) |
| Karlovo to Destelbergen | 1,144.19 mi (1,841.39 km) |
| Karlovo to Deurne | 1,122.51 mi (1,806.50 km) |
| Karlovo to Diepenbeek | 1,075.69 mi (1,731.16 km) |
| Karlovo to Diest | 1,092.42 mi (1,758.08 km) |
| Karlovo to Diksmuide | 1,181.47 mi (1,901.40 km) |
| Karlovo to Dilbeek | 1,120.38 mi (1,803.07 km) |
| Karlovo to Dinant | 1,078.59 mi (1,735.83 km) |
| Karlovo to Dison | 1,050.19 mi (1,690.11 km) |
| Karlovo to Dour | 1,128.63 mi (1,816.36 km) |
| Karlovo to Drongen | 1,149.55 mi (1,850.02 km) |
| Karlovo to Duffel | 1,116.89 mi (1,797.46 km) |
| Karlovo to Durbuy | 1,058.77 mi (1,703.92 km) |
| Karlovo to Ecaussinnes-Lalaing | 1,116.23 mi (1,796.40 km) |
