| Rockford to Dendermonde | 4,158.47 mi (6,692.42 km) |
| Rockford to Dessel | 4,188.62 mi (6,740.94 km) |
| Rockford to Destelbergen | 4,146.76 mi (6,673.57 km) |
| Rockford to Deurne | 4,164.91 mi (6,702.78 km) |
| Rockford to Diepenbeek | 4,211.70 mi (6,778.07 km) |
| Rockford to Diest | 4,195.36 mi (6,751.79 km) |
| Rockford to Diksmuide | 4,112.66 mi (6,618.68 km) |
| Rockford to Dilbeek | 4,171.29 mi (6,713.05 km) |
| Rockford to Dinant | 4,216.90 mi (6,786.44 km) |
| Rockford to Dison | 4,238.44 mi (6,821.11 km) |
| Rockford to Dour | 4,169.63 mi (6,710.37 km) |
| Rockford to Drongen | 4,141.82 mi (6,665.61 km) |
| Rockford to Duffel | 4,171.44 mi (6,713.29 km) |
| Rockford to Durbuy | 4,233.78 mi (6,813.61 km) |
| Rockford to Ecaussinnes-Lalaing | 4,178.53 mi (6,724.69 km) |
