| Hackettstown to Dendermonde | 3,671.12 mi (5,908.09 km) |
| Hackettstown to Dessel | 3,706.74 mi (5,965.43 km) |
| Hackettstown to Destelbergen | 3,658.59 mi (5,887.93 km) |
| Hackettstown to Deurne | 3,680.76 mi (5,923.60 km) |
| Hackettstown to Diepenbeek | 3,727.45 mi (5,998.75 km) |
| Hackettstown to Diest | 3,710.68 mi (5,971.76 km) |
| Hackettstown to Diksmuide | 3,621.27 mi (5,827.87 km) |
| Hackettstown to Dilbeek | 3,682.35 mi (5,926.18 km) |
| Hackettstown to Dinant | 3,724.39 mi (5,993.82 km) |
| Hackettstown to Dison | 3,752.69 mi (6,039.38 km) |
| Hackettstown to Dour | 3,674.63 mi (5,913.75 km) |
| Hackettstown to Drongen | 3,653.21 mi (5,879.27 km) |
| Hackettstown to Duffel | 3,686.17 mi (5,932.31 km) |
| Hackettstown to Durbuy | 3,743.98 mi (6,025.36 km) |
| Hackettstown to Ecaussinnes-Lalaing | 3,686.61 mi (5,933.03 km) |
