| Cities | Distance |
|---|---|
| Olen to Dendermonde | 33.53 mi (53.96 km) |
| Olen to Dessel | 12.90 mi (20.77 km) |
| Olen to Destelbergen | 46.08 mi (74.16 km) |
| Olen to Deurne | 17.56 mi (28.25 km) |
| Olen to Diepenbeek | 29.83 mi (48.00 km) |
| Olen to Diest | 14.38 mi (23.15 km) |
| Olen to Diksmuide | 86.44 mi (139.11 km) |
| Olen to Dilbeek | 34.05 mi (54.80 km) |
| Olen to Dinant | 61.10 mi (98.33 km) |
| Olen to Dison | 57.08 mi (91.86 km) |
| Olen to Dour | 69.88 mi (112.46 km) |
| Olen to Drongen | 51.80 mi (83.37 km) |
| Olen to Duffel | 14.86 mi (23.92 km) |
| Olen to Durbuy | 61.16 mi (98.43 km) |
| Olen to Ecaussinnes-Lalaing | 49.70 mi (79.98 km) |